The 28-year-old crossed the line in 46.92sec to take 0.23 seconds off that which he set on his way to claiming the Paralympic gold medal at Rio 2016.

"I managed to break the world record already a couple of times so I believed I could improve it again," Amguoun said. 

"To be honest, I was ready to go even faster, but I felt a bit of headwind, especially in the curves, so it slowed me down.

"I was hoping to go under 46 seconds."

Namibia’s Johannes Nambala, the 2013 world champion, was the runner-up in 48.40.

Algeria’s Mohamed Fouad Hamoumou came away with the bronze medal in 48.65.

Earlier in the evening, Tunisia’s Walid Ktila capped off a superb performance at these Championships by claiming his fourth gold medal with victory in the men’s 200m T34.

Having already won the 100m, 400m and 800m titles, Ktila made it four gold medals with a Championship record time of 27.14.

It seals a repeat of his performance at both the 2013 World Championships in Lyon and the 2015 edition in Doha, where he was also unbeatable in all four distances.

"It's a great win because the conditions were difficult today," Ktila said.

"There was a strong wind.

"The final stage of the race was very tough.

"I think my speed at the end was very important."

The United Arab Emirates’ Mohamed Alhammadi finished runner-up to Ktila, as he had done in the 400m and 800m, in 27.81.

Completing the top three was Australia’s Rheed McCracken in the same time, an Oceania record.

Another Oceania record of 54.27 earned Australia’s James Turner the men’s 400m T36 title ahead of Poland’s Krzysztof Ciuksza in 55.19 and New Zealand’s Keegan Pitcher in a personal best 55.23.

Victory sees Turner, a former footballer, add to his gold medal from the 200m in which he set world records in both the heats and final.

Australia’s second gold medal of the night came from Evan O’Hanlon.

He beat China’s Hu Jianwen to men’s 100m T38 gold in a photo-finish.

Both athletes posted 11.07 but it was O’Hanlon who was on the right end of the final verdict.

Brazil’s Edson Pinheiro won the bronze medal in 11.30.

Paralympic champion Peter Genyn of Belgium successfully defended his men’s 100m T51 title with a time of 21.10.

He beat Finland’s Toni Piispanen, the London 2012 gold medallist who came second in 21.54.

Algeria’s Mohamed Berrahal came third in 22.08. 

In the repeat of the men’s 800m T54 final, which had to be re-run following a crash involving four competitors on Monday (July 17), Switzerland’s Marcel Hug won in 1min 38.40sec.

Hug had originally triumphed before World Para Athletics confirmed the race would have to be held again as a result of the crash that led to the disqualification of Great Britain’s Richard Chiassaro. 

China’s Liu Yang was the runner-up in 1:38.69, followed by Tunisia’s Yassine Gharbi in 1:38.82.

Double European champion Timothée Adolphe of France appeared to have won the men’s 200m T11 final but was later disqualified after it was ruled his guide, Yannick Fonsat, had illegally crossed the line before him.

China’s Fan Zetan was upgraded to the gold medal with a time of 23.28. 

The United States' David Brown took the silver medal in 23.35, despite his guide Jerome Avery falling over just before the line, and Fan’s compatriot Dongdong Di claimed bronze in 23.77. 

The men’s 200m T12 final saw fastest qualifier Mahdi Afri of Morocco, the Rio 2016 bronze medallist, win in 22.39.

Spain’s Joan Munar Martinez was his closest challenger, taking the silver medal in 22.60.

Portugal’s Luis Goncalves was third in 22.78.

Defending champion Leinier Savon Pineda of Cuba was disqualified in the heats.

Kadeena Cox won Britain’s only gold medal of the night with a comfortable victory in the women’s 400m T38 event.

Her time of 62.87 was 2.16 seconds slower than the world record she set on the way to Rio 2016 gold. 

Japan’s Yuka Takamatsu was a distant second in a personal best 68.32 and Australia’s Torita Blake finished third in 1:09.24. 

In the men’s 1,500m T11 final, Kenya’s Samwel Mushai Kimani secured his second gold medal of the Championships in 4:11.54.

The world record holder, winner of the 5,000m last Saturday (July 15), beat Canada’s Jason Dunkerley.

Dunkerley posted 4:13.67 and Poland’s Aleksander Kossakowski third in 4:14.21.

Ukraine were the dominant force in the field events with three gold medals. 

Mariia Pomazan was the first to triumph with victory in the women’s shot put F35 with a throw of 12.63 metres.

Rio 2016 gold medallist Wang Jun of China finished second with 12.24m and Poland’s Klaudia Maliszewska came third with a personal best 7.81m.

There was also success for Ukraine in the women’s long jump T12 thanks to Oksana Zubkovska’s leap of 6.02m.

Spain’s Sara Martinez claimed the silver medal with a jump of 5.53m and Algeria’s Lynda Hamri came third with 5.42m.

Another Ukrainian triumph came in the women’s discus F12 where Orysia Ilchyna registered a winning throw of 38.78m.

Uzbekistan’s Safiya Burkhanova managed a personal best 38.17m to finish second and China’s Zhao Yuping, the javelin throw F13 gold medallist, came third with 36.35m. 

The women’s shot put F44 competition was won by Germany’s Frederike Charlotte Koleiski with a throw of 11.53m.

Defending champion and world record holder Yao Juan of China had to settle for the silver medal with 11.48m.

Compatriot Yang Yue threw 11.32m to take the bronze medal. 

Having won the women’s shot put F55 and javelin throw F56 events, Latvia’s Diana Dadzite picked up her third world title with victory in the discus throw F55.

The 31-year-old achieved a personal best 23.18m to beat Colombia’s Erica Maria Castano Salazar, the runner-up in an Americas record of 21.30m.

China’s Yang Liwan was also hoping to complete a hat-trick of titles having already triumphed in the shot put and javelin throw F54.

She had to settle for the bronze medal on this occasion with an Asian record of 19.25m.

There was a Championship record set in the men’s long jump T37 event with China’s Shang Guangxu prevailing with a mark of 6.58m.

Brazil’s Mateus Evangelista Cardoso was the runner-up with 6.10m and Ukraine’s Vladyslav Zahrebelnyi came third with 5.95m.

The last gold medal to be awarded this evening was in the men's shot put F53 with Iran's Alireza Mokhtari Hemami winning in an Asian record of 8.35m.

America's Scot Severn came second with 8.13m and Mokhtari Hemami's compatriot Asadollah Azimi finished third with 7.96m. 

After eight days of action, China lead the medal table with 22 golds, 16 silvers and 16 bronzes.

America are second with 15 golds, 15 silvers and 12 bronzes and are followed by Britain in third with 14 golds, three silvers and 13 bronzes.

Action is due to continue tomorrow.