NEW YORK (AP) — New York City police have tightened protections after Iraq’s prime minister said captured Islamic State militants had disclosed a plot to attack U.S. and Paris subways. But New York’s mayor and governor say there is no specific, credible threat currently to the nation’s biggest subway system.

Bag inspections were being set up Thursday at some subway stations, and more bomb-sniffing dogs and surveillance teams were deployed. Police Commissioner William Bratton said officers were working overtime and doing extra checks of subway stations.