A missing 45-year-old Uber driver from Montgomery County "was intent on harming herself" and may have committed suicide, police said Monday after finding the woman's abandoned car.

Krysten Laib, of Abington Township, was last seen about 4:45 a.m. Tuesday when she dropped off Uber customers on Axe Factory Road in Northeast Philadelphia. Her green 2003 Subaru Legacy was found Monday at the base of the Ben Franklin Bridge, according to Abington police. But there was no sign of Laib.

"There is strong evidence to suggest that her disappearance was voluntary and that she was intent on harming herself," the department said in a statement. "A search for her remains is currently underway."

The statement did not elaborate on what evidence led police to suspect Laib killed herself.