Fire officials had to evaluate several employees at a Severna Park restaurant after increased levels of carbon monoxide were found Tuesday.

Anne Arundel County Fire responded to the Noodles & Company in the 500 block of Ritchie Highway just after 6:15 p.m.

Seven people exhibited lightheadedness and headaches, the department said. Two people were taken to the hyperbaric chamber at the University of Maryland Medical Center, two people were taken to University of Maryland Medical Center, two people were taken to Baltimore-Washington Medical Center and one person was taken to Anne Arundel Medical Center.

Hazmat crews were called in to investigate the source of the leak. Crews said the source came from a hood on top of the stove that was not ventilating properly.

CO leak sickens 7 at Severna Park restaurant (wbaltv.com)