A man was shot and killed by Veterans Affairs officers at a hospital in Dallas Wednesday night, police said.

Police officers opened fire on the man who was armed with a knife at about 10:22 p.m. at the Veterans Affairs Hospital at 4500 S. Lancaster Road.

The man was at the hospital seeking psychiatric help, police said. At some point during the interaction, the man started to walk off and the VA officers followed him and tried to disarm him, according to the VA police. Their attempts to disarm him were unsuccessful and two officers opened fire, police said.

The man was hospitalized and died of his injuries.

No officers were injured in the incident. The Dallas Police Department Special Investigations Unit is conducting the investigation.

Check back on this breaking news story. As this story unfolds, elements may change.

Police officers opened fire on the man who was armed with a knife at about 10:22 p.m. at the Veterans Affairs Hospital at 4500 S. Lancaster Road, police said.