Two men were killed and a woman got wounded on Friday in a shooting at a restaurant inside a mall in Tucson, Arizona, the Pima County Sheriff's Department said.

The shooting took place at 7:30 p.m. local time on Friday (0230 GMT, Saturday). A man and a woman were having dinner in the restaurant before another man came in. They got into an altercation and then the shooting occurred, local media reported.

The woman was shot in the leg and was sent to a local hospital. Several eyewitnesses said they heard 10 shots before the shooter turned his gun on himself, but authorities have not confirmed how many shots were fired during the shooting.

"All three individuals were known to each other, but the specifics of the relationship are unknown," said the spokesman for the Pima County Sheriff’s Department.

The department did not release the victims' identities, citing the fact that the crime scene was still active and the details of the incident are yet to be confirmed.