Three men have been arrested in Co Donegal as part of a follow-up operation after a bomb was left under a PSNI officer's car in Derry.

The three, aged in their late 20s and early 30s, were arrested in Killygordon this afternoon on suspicion of terrorism offences.

The bomb was discovered in Eglington village after suspicious activity was reported to police at around 2.45am.

Two of the men are being held in Letterkenny Garda station, while another man is being held in Milford.

PSNI District Commander Mark McEwan said the attack was a clear attempt to murder police officers: