Brock Lesnar has tested positive for an unnamed substance in an in-competition sample taken on the night of his UFC 200 heavyweight victory over Mark Hunt on July 9, the Ultimate Fighting Championship (UFC) says.

American professional wrestler and mixed martial artist Brock Lesnar has been flagged by the U.S. Anti-Doping Agency (USADA) for a possible doping violation.

Taliban fighters seize a military hilltop site in Kunduz, tightening their grip on the northern Afghan city.

Four Saudi soldiers and many Yemeni rebels are killed in intense fighting along the two countries' border, the Saudi-led coalition says.

Fighting in the Yemeni city of Aden has intensified as Houthi rebels try to seize control of the city despite airstrikes on Houthi forces by a Saudi-led coalition.