A 22-year-old man has been arrested for allegedly sexually assaulting a woman sleeping in her bed in her Alice Springs home, NT Police said.

NT Police director of communications Mark Wilton said in a statement police received a report at 10:17pm Saturday, that a 29-year-old woman had been sexually assaulted by an unknown male in her Eastside house while asleep.

“The victim woke during the offending and screamed, which alerted other members of the residence and the man fled the area in a vehicle,” Mr Wilton said.

Police said that at an unspecified time soon after the vehicle was spotted and pulled over on Gap Road but the man, and two other unknown people, allegedly ran off.

The man was arrested on Traeger Avenue at 10:39pm after being chased by police.

Mr Wilton said the man was expected to be charged on Sunday.

Police are asking anyone with information about the alleged assault to call them on 131 444, (quote reference P24340795).