The Tunisian star, a double gold medallist at last year’s World Para Athletics Championships in London, triumphed in the men’s T54 400 metres wheelchair race.

Gharbi completed the distance in a time of 47.21sec, with Switzerland’s Hug ending as the runner-up in 49.39.

Japan’s Tomoki Suzuki finished third in 49.65.

Tunisia's Walid Ktila was unable to add the 200m and 800m titles he earned yesterday as the 12-time world champion was disqualified in the T33/34 400m race.

Switzerland’s Bojan Mitic was the beneficiary, as he claimed victory in a time of 57.37.

He was followed by local athlete Ahmed Jasem and Britain’s Andrew Small, who ended in 62.15 and 64.25 respectively.

Tunisia’s Raoua Tlili added to the discus title she earned on the opening day as she claimed gold in the women’s F37/40/41 javelin competition.

Tlili managed a distance of 25.13 metres to top the standings.

United Arab Emirates’ Maryam Ahmed Alzeyoudi claimed the silver medal with a throw of 13.83m.

The bronze was earned by Eva Datinská, the Czech athlete managing 13.59m.

Japan's Aimi Toyama won the women’s T11/13/20/28 400m final in  61.28.

She was followed by the Turkish duo Asli Adali and Öznur Alumur, who finished three seconds adrift of the winner.