The arrest is the latest in an investigation that has drawn international attention after US President Donald Trump said a threat linked to Iran had subsequently prompted the removal of B-1 bombers. London arrest deepens RAF Fairford terror probe over suspected Iran link Key points and original sources are listed below.

• The arrest is the latest in an investigation that has drawn international attention after US President Donald Trump said a threat linked to Iran had subsequently prompted the removal of B-1 bombers.S1

• London arrest deepens RAF Fairford terror probe over suspected Iran linkS2

• A dual British-Iranian national was arrested on Saturday before him.S3

• Donald Trump has criticised the UK authorities over the bailing of suspects detained over the incidentS4