SANAA, Dhu-AlQa'dah 28, 1436, Sep 12, 2015, SPA -- A drone attack killed four men suspected of belonging to al Qaeda in northern Yemen on Saturday, as a U.S. campaign against the militants goes on, Reuters cited tribal sources as saying. Two missiles hit the men's car, killing all of them, tribesmen in the province of al-Jawf said by telephone. The four men were not immediately identified. --SPA 12:45 LOCAL TIME 09:45 GMT www.spa.gov.sa/w