Petrol bombs were thrown at a police vehicle in Derry, Northern Ireland, while officers patrolled an “un-notified Easter parade” on Monday, April 10, police said.Footage recorded by Aodhan Roberts shows a group of people wearing hoods and masks throwing flaming objects at a police vehicle.Police Derry City and Strabane said on Twitter: “Our officers have come under attack in Creggan with petrol bombs and other objects thrown at their vehicle while in attendance at an un-notified Easter parade. No injuries have been reported at this time. We would appeal for calm.”Local media reported the event as a “republican Easter commemoration." Credit: Aodhan Roberts via Storyful