Police say there is no current credible threat to two shuttered high schools in New Hampshire and classes will resume Tuesday.

A "detailed" threat to hurt students and teachers in Nashua prompted officials to close all the public schools in New Hampshire's second largest district.

Nashua Police Chief Andrew Lavoie said at a briefing Monday afternoon that the buildings have been searched and no dangerous devices were found. He says there will be more police officers at the schools Tuesday.

The closing in New Hampshire comes less than a week after threats of violence shuttered schools in Los Angeles, the nation's second largest district. A rash of threats followed in several other large school districts.

It also comes after the San Bernadino, California, shootings that left 14 people dead.