U.S. to implement 'enhanced security measures' at overseas airports

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FILE - In this June 24, 2014, file photo, Homeland Security Secretary Jeh Johnson testifies on Capitol Hill in Washington. Johnson is ordering increased security measures at some overseas airports offering direct flights to the United States. The Homeland Security Department would not immediately say July 2 whether the increased measures were in response to intelligence about a specific threat. But a U.S. counterterrorism official says American intelligence has seen indications that certain terrorist groups in Yemen and Syria are working on a bomb that could make it through airport security undetected. (AP Photo/Charles Dharapak, File)

WASHINGTON (Reuters) - The United States will increase security measures at overseas airports that have direct flights to the United States, the Department of Homeland Security said on Wednesday.

The department did not specify which airports or what countries would be affected, nor did it say what triggered the enhanced measures.

"We are sharing recent and relevant information with our foreign allies and are consulting the aviation industry," DHS Secretary Jeh Johnson said in a statement.

U.S. officials told Reuters on Wednesday the Obama administration was pushing for increased security precautions at European airports because of concerns that al Qaeda operatives in Syria and Yemen had teamed up to develop bombs that could be smuggled onto planes.

(Reporting by Doina Chiacu; Editing by Peter Cooney)