Britain has ordered the suspension of direct flights from Yemen until further security measures are agreed, following the Detroit bombing scare, Prime Minister Gordon Brown said Wednesday. "We have agreed with Yemenia airlines -- pending enhanced security -- that they suspend their direct flights to the UK from Yemen with immediate effect," he said in a statement on counter-terrorism to the House of Commons. But he added: "We are working closely with the Yemeni government to agree what security measures need to be put in place before flights are resumed. Aviation security officials are in Sanaa at present looking at this. "I hope that flights can be resumed soon -- but the security of our citizens must be our priority."