Transit Police and BPD stepping up patrols at subway stations after Port Authority attack

There is no credible threat against Boston or the sprawling MBTA transit system, but in the wake of the bombing in New York City, law enforcement is stepping up patrols on the T and around the city, officials said Monday.

MBTA Transit Police Superintendent Richard Sullivan said he contacted the Joint Terrorism Task Force along with state and local law enforcement agencies in the wake of the bombing in a transit tunnel connecting the Port Authority and Times Square subway stations.

“At this time, there is no information – credible or otherwise to suggest that the MBTA is a target,’’ Sullivan said. “That being said, we will have high visibility coverage at high volume stations and will have additional EDU teams deployed through the system.’’