A veteran Bronx cop who tried to kill himself two weeks ago because he was stressed about having to rat out his colleagues in the ticket-fixing scandal has been re-admitted to a psych ward after going missing, sources told The Post.

Officer Robert McGee, 62, was rushed to North Central Bronx Hospital around 10 a.m. Monday after he had been reported missing, the sources said.

He had left his Riverdale home for a walk earlier that morning and returned 45 minutes later, sources told The Post.