Crowds in Uganda have given a hero's welcome to Stephen Kiprotich, the country's first Olympic gold medal winner in 40 years.

Kiprotich, a prison warden who won the men's marathon on Sunday, was then presented with a cheque for $80,000 (£51,000) by President Yoweri Museveni.

He was also promoted nine ranks to become an assistant superintendent in the prisons service.

Mr Museveni promised that more would be done to invest in athletes in future.