A masked man carrying a "simulated weapon" robbed the Wienerschnitzel on Huntington Drive Sunday night, police said.
The man entered the Wienerschnitzel at about 8:40 p.m. and brandished what appeared to be a weapon inside a plastic bag, Monrovia Police Sgt. Nick Manfredi said.
"They were wearing a black hooded sweatshirt and a black mask and had a plastic bag with a simulated firearm inside the bag," Manfredi said. "He entered and pointed the bag at the clerk and demanded money."
The man made off with $170 in cash, Manfredi said. Authorities surrounded the area and called in a police helicopter to aid in the search for the suspect but he was not found.
Manfredi said police did not know if the man fled in a vehicle and he was not seen once he exited the fast food restaurant.