Andrew McCabe, the former FBI deputy director fired by the US attorney general, kept personal memos regarding President Donald Trump, according to a source.

A dozen US Secret Service agents sent to Colombia to provide security for President Barack Obama at an international summit have been relieved of duty over alleged misconduct.

Justice Department lawyers showed "poor judgment" but did not commit professional misconduct when they let CIA interrogators use waterboarding and other harsh tactics at the height of the US war on terror, an internal review said.

The US Secret Service launched an urgent investigation into its own security procedures after a couple gatecrashed a glittering White House state dinner for the Indian prime minister and posted the pictures on Facebook.