Five men were detained early Sunday after three vans were spotted near RAF Fairford, a U.K.-owned base operated by the U.S. Police are holding five men and examining suspected explosives found near a U.S.-operated air force base in England. Key points and original sources are listed below.

• Five men were detained early Sunday after three vans were spotted near RAF Fairford, a U.K.-owned base operated by the U.S. Air ForceS1

• Police are holding five men and examining suspected explosives found near a U.S.-operated air force base in England.S2