Four gardaí were treated in hospital and a number of people arrested following a series of attacks across Dublin last night.
The first attack took place in Summerhill in the north inner city after gardaí were called to a suspected robbery at a Chinese restaurant.
A man (33) armed with a knuckle-duster sprayed three officers and a shop assistant in the face with pepper spray. The man was arrested and all four were taken to the Mater Hospital for treatment.
Later, a local man in his thirties walked into a Garda station in the Shankill area of south Dublin and assaulted a senior officer.
The man attacked a sergeant, biting his face and hand, and was later charged. The officer was treated at Loughlinstown Hospital.
In Blackrock, a woman armed with a steak knife was arrested after she walked into a Garda station and threatened two officers.