Toronto and Durham Region police have issued a public safety alert after a mental health inmate responsible for sex attacks on two young girls has gone missing.

Mylvaganam Vaasuhan, 31, was among a group of four patients and two staff supervisors from the Whitby Mental Health Centre on an escorted outing to the Rogers Centre on Tuesday night.

Police said at some point during the Blue Jays game, Vaasuhan said he had to get something and walked away. He was last seen outside the stadium.

While health centre officials said they had reported the disappearance to police within minutes, they offered reporters no information on how Vaasuhan was able to get away.

In 2002, Vaasuhan was found not criminally responsible by reason of a mental disorder for sexual attacks on two young girls, aged five and eight, at a playground.

Vaasuhan said he wanted to play with the girls and take them to his "dungeon," police said. After the girls were accosted, they ran home.

A court ordered Vaasuhan to remain at a medium security unit in Whitby indefinitely, and he is banned from having contact with anyone under the age of 14.

He was, however, eligible to participate in community outings, such as the sporting event.

Vaasuhan does not have his medication, which he uses to control his schizophrenia, paranoia and sexual urges.

Police are concerned for the public's safety and warn young girls could be at risk.

Anyone with information is asked to contact police immediately or call Crime Stoppers anonymously at 416-222-TIPS (8477), or go online at www.222tips.com.

With a report from CTV's Jim Junkin