BRENTWOOD, N.H. (AP) A man has been held without bail on a charge of setting fire to a New Hampshire middle school, and police believe he paddled a canoe from Maine with a propane tank and a bucket of flammable liquid.

Twenty-four-year-old Christoph Berger was arraigned Tuesday, accused of arson and other charges stemming from events in Portsmouth, Newington and Rye on May 22-23.

The Portsmouth Herald reports Berger’s lawyer said Berger was struggling with mental health issues at the time. Not guilty pleas were entered for him.

The judge found Berger to be a danger to himself and others and ordered his preventative detention until he can be transferred to a secure psychiatric facility.