Suicide bombers tried to strike two oil facilities in Yemen with explosives-packed cars, but authorities foiled the attacks and one security guard and four bombers were killed, the Interior Ministry said Friday. The attempts occurred 35 minutes apart and targeted a Yemeni oil refinery in the northeast province of Mareb, and a Canadian-Yemeni oil storage facility at the Dubba Port in Haramut province — scene of a 2002 attack on the French tanker Limburg, an Interior Ministry statement was quoted as saying by the Associated Press. The statement said an investigation was under way to determine the identity of the "terrorist elements" behind the attacks.