UPDATE: Medtronic Building Evacuated After Chemical Spill

A chemical spill in a building housing medical technology company Medtronic resulted Monday in the evaluation of 21 people, three of whom were sent to hospitals with "mild distress," the fire department reported.

Firefighters and a hazardous-materials team were sent to the building in the 18000 block of Devonshire Street shortly before 1 p.m., said Erik Scott of the Los Angeles Fire Department. The two-liter spill occurred on the first floor of the two-story building, which was evacuated, he said.

The spill involved polyimide rinse, a component used for insulation purposes in digital and computer technology, according to an inspector with the county fire department, which also sent a hazmat team to the scene.

Cal-OSHA was sent to investigate the spill.