Police troopers stand on a police patrol vehicle stationed under a bridge in Sanaa May 5, 2014, after they received flowers from activists showing their support for the military operation against al Qaeda militants in the south of the country. Yemen said at least 37 al Qaeda militants were killed in the southern province of Shabwa on Sunday as the army intensified an offensive to root out foreign and local Islamist fighters holed up in some of the country’s most impenetrable areas. REUTERS/Khaled Abdullah (YEMEN – Tags: POLITICS CIVIL UNREST CRIME LAW)