Two with stun gun rob Bryn Mawr coffee shop

A pair of masked men armed with a stun gun ambushed two Bryn Mawr Starbucks employees early Friday as they prepared to open the coffee shop for the day, police said.

The thieves wounded the workers and robbed the shop of cash.

They entered the store, 766 Lancaster Ave., at 5:15 and forced the two to the floor behind the counter, said Lower Merion Police Superintendent Michael J. McGrath. The robbers took about $800 in bills and coins, he said.

The men used the stun gun to shock the employees, who had superficial wounds, McGrath said. They did not need medical treatment, Police Lt. Frank Higgins said.

Stun guns, which are illegal in Pennsylvania, deliver a high-voltage current between two metal posts when the trigger is pulled. Some are small enough to be carried in pants pockets.

Higgins reported late Friday afternoon that no arrests had been made.

The men fled south on Pennsylvania Avenue, dropping "a large quantity of coins" as they went. Police recovered the coins, McGrath said.

Both robbers wore masks; one wore a green, hooded sweatshirt and the other a black, hooded sweatshirt.

Surveillance videotape was being sought in an attempt to identify the men, McGrath said. The robbery is under investigation.