Riots in two Aboriginal communities

Riots have broken out in two separate Aboriginal communities in the Northern Territory today.

Darwin's Tactical Response Team was called into the remote Arnhem community of Milingimbi after a riot broke out involving 60 people.

Police said the group was armed with weapons and started fighting late last night.

Calm was restored, but reignited again about 11:00am.

Also this morning, a riot involved about 200 people broke out on the Tiwi Islands.

That incident started in the main street if Nguiu and five people have been arrested.

Extra police were called in from the neighbouring Melville Island.

Police said peace has now been restored and about 30 people are expected to be summonsed.