A man was stabbed when he tried to stop a fight between another man and a woman in a Nassau Bay apartment complex parking lot Wednesday night, police said.

At 11:20 p.m., Webster police officers were called out to the Balboa Apartments on Upper Bay Road.

Officers said Joshua Knight, 20, and a woman were arguing in the parking lot when another man intervened. He was stabbed in the back by Knight, investigators said.

Police said the victim, who was alert and conscious, was transported by medical helicopter to Memorial Hermann Hospital. His name and condition were not released.

Knight was arrested and charged.