Zazini Sokwakhana was triumphant in the men’s event, denying Kenya's home favourite Moitalel Mpoke Naadokila in impressive style.

The South African was the only man to dip under the 50 second mark, clocking 49.27sec to claim the gold medal.

Kenya’s Naadokila crossed the line in a personal best of 52.06 to take silver, while Baptiste Christophe of France won bronze in 52.21.

Zeney van der Walt emerged as the winner of the women’s 400m hurdles, taking the gold medal in a time of 58.23.

The podium was completed by Jamaica’s Sanique Walker and Germany’s Gisele Wender, who clocked 58.27 and 59.17 respectively.

There was an Ethiopian one-two in the women’s 1,500m, with Lemlem Hailu taking the title in 4min 20.80sec and team-mate Sindu Girma ending as the runner-up two seconds adrift.

Kenya’s Edina Jebitok added to the hosts' medal tally, winning bronze in 4:23.16.

The women’s 5,000m race walk title was earned by Glenda Morejón, with the Ecuadorian athlete clocking 22:32.30.

She finished narrowly clear of Turkey’s Meryem Bekmez, while Elvira Khasanova ended as the bronze medallist in 22:35.72.

Khasanova was one of nine Russian athletes to be cleared to compete under a neutral flag by the International Association of Athletics Federations, with the country still serving a suspension due to doping allegations. 

Another neutral athlete, Salavat Ilkaev, was the runner-up in the men’s 10,000m race walk behind Yao Zhang, with the Chinese walker winning in 41:12.01 over his rival's 41:24.17.

Kenya's Dominic Samson Ndingiti won bronze in 41:25.78.

Cuba celebrated a one-two in the women’s hammer throw, with Amanda Almendáriz and Yaritza de la Martínez throwing 71.12m and 69.75m respectively.

Bronze was claimed by Belarus’ Katsiaryna Valadkevich, who managed a throw of 68.17m.

María Vicente of Spain was crowned winner of the women’s hepathlon after finishing on 5,612 points, with Germany’s Johanna Siebler and Urte Bacianskaite of Lithuania earning the minor medals on 5,602 and 5,467.

The IAAF have stated that 37,600 spectators watched today's morning session, with 50,300 present for the evening's action.

In response to security fears in Kenya in the build-up to the event, the country's Government has imposed extra cordons around the venue.

All vehicles travelling to the facility must undergo security checking more than 100m away from the stadium, while additional police officers are in attendance.

There are also concerns of escalating violence across Kenya prior to the country's Presidential elections in August, while the threat of terrorism also remains high.

Six countries - the United States, Australia, Britain, Switzerland, New Zealand and Canada - all withdrew prior to the event due to security fears.