Andre Bucher produced another brilliant run to take gold in the men's 800m.

The Swiss sensation - who tops the world rankings this year - pulled clear of the field with 250m remaining and cruised home in a time of 1:43.70.

The silver medal went to Kenya's Wilfred Bungei, while Pawel Czapiewski took bronze.

Olympic champion Nils Schumann of Germany finished fifth in what has been a season wrecked by injury.