The Burlington Mall reopened Friday morning after a water main break in the mall’s parking lot forced the building to close Thursday afternoon, a mall spokeswoman said. The break outside the Sears store caused a Toyota Camry to dip into a sinkhole. The car was towed, and no injuries were reported, said spokeswoman Linnea Kelliher. Burlington public works employees and police are investigating what caused the break. It is still unclear if it was related to the weather, Kelliher said.Jacqueline Tempera can be reached at email@example.com. Follow her on twitter @jacktemp.