NORWALK - A Norwalk doctor's office remains closed today after a mercury spill yesterday.

Fire officials and a hazmat team were called to 40 Cross St. after the mercury spilled on to the floor.

The spill was reported around 11:30 a.m. on the fourth floor at the Norwalk Medical Group.

Officials say more than 30 patients and staff had to be tested for mercury contamination.

No one was hurt.

Norwalk doctor's office quarantined after mercury spill