UPDATE: Baltmore cops: Gunman at Johns Hopkins hospital is dead

BALTIMORE (AP) — A gunman who wounded a doctor at Johns Hopkins hospital in Baltimore and then barricaded himself inside a room has been shot and killed by officers, Baltimore police said today.

Police spokesman Anthony Guglielmi said the doctor, who was shot in the stomach, was undergoing surgery and is expected to survive.

"The doctor will be OK," Guglielmi said. "He's in the best place in the world — at Johns Hopkins hospital."

He said he did not know the relationship between the gunman — described as a man in his 30s — and the doctor. The hospital said in a statement that the doctor is a faculty physician but that it could not release more information because of privacy policies.

A small area of the hospital had been locked down before the gunman was killed, as about a dozen officers wearing vests and helmets and carrying assault weapons prepared to go into the hospital at midday.