ROSEVILLE — An accidental discharge of the fire protection system is behind the flooding at the Roseville Galleria on Monday. 

Roseville Fire Department firefighters responded to the mall just after 9 a.m. after getting a water flow alarm. 

At the mall, firefighters discovered that a construction worker in a vacant suite near the movie theaters had hit a fire protection system pipe, triggering the discharge. 

A lot of water was discharged before crews could get it under control, the fire department says. 

Due to the incident, several businesses have been impacted: Amazing Alterations, Cotton On Kids, Lolli & Pops (the store under construction), Wetzel's Pretzels, Hot Topic, Mainland Surf & Skate, and Quickly. Salvage operations are underway. 

Officials say Century Roseville 14 and the rest of the mall remains open.