One man was treated at the scene for minor injuries, a second was taken to hospital.

Three of those age 28, 33 and 47 have also been charged with the preparation of terrorist acts.

The road is closed in both direction

The pair are to be prosecuted for alleged misconduct in public office.

The officer's condition is described as critical but stable.

The accused used a 6 hour long live stream of him playing video games as an alibi.

Investigations are continuing.

Police believe the attack was carried out by the New IRA.