Intensified security measures are being put in place on commuter rail lines, bridges and major transportation hubs following the latest military offensive against Islamic State and other terror groups, the governors of New York and New Jersey said yesterday.

In a joint announcement, Gov. Andrew Cuomo and New Jersey Gov. Chris Christie said they were taking immediate steps to gird the region's infrastructure and indicated they could take additional measures in 30 days. They also agreed to increased collaboration between both state agencies, the NYPD and federal officials.

In New York, the National Guard was doubling the number of soldiers to as many as 500 to patrol rail hubs and station platforms.

Officials in New Jersey also said they were increasing uniformed officers at critical infrastructure points and putting additional marine and aviation around bridges and mass transit facilities. Increased baggage checks will also occur, as well as vehicle checks at bridge crossings, officials said. Both Cuomo and Christie, as well as various law enforcement officials stressed that there is no known credible terror threat to either state.

Ten days ago they had both called for law enforcement officials in both states to review counter terrorism strategies.