Fifteen PSNI officers were injured and four homes were set ablaze as trouble erupted in Ballymena last night.
Masked thugs threw missiles at officers and a police car was attacked during the disorder, which police described as racially-motivated.
During the violence, officers discharged one Attenuating Energy Projectile (AEP) with one rioter struck.
One man has been arrested, police said today.
The 29-year-old was held on suspicion of riotous and disorderly behaviour, attempted criminal damage and resisting police. He remains in police custody.
Trouble erupted close to where a teenage girl was allegedly the victim of a serious sexual assault at the weekend.It is understood that people had initially gathered to support the family of the girl.
But later in the evening several houses were attacked by masked youths, who could be seen kicking in doors and throwing missiles at windows.
Footage showed some attempting to set curtains alight after front windows were smashed.
Firefighters in breathing apparatus could be seen forcing their way into properties amid fears that people could be trapped inside.
