Montgomery County Police say they believe two men involved in an attempted robbery at a CVS store in Potomac early Wednesday were also responsible for an attempted robbery of a Wells Fargo bank in Rockville a day earlier.

In the CVS incident, police said, two men tried to rob a 24-hour store in the 7900 block of Tuckerman Lane in the Cabin John shopping center just after 4 a.m. The men tried to rob the store, but ran out before taking anything.

One of the men was described as being in his 20s and appeared to be wearing a fake beard mask that covered most of his face. He was wearing a black baseball cap with a white insignia, a black hooded sweatshirt with a gray logo, camouflaged pants and black tennis shoes, police said. He was armed with a handgun.

The other man was also believed to be in his 20s and was wearing a hooded sweatshirt that was white on the front and dark on the back and sleeves. He was also wearing blue jeans and a black mask with the eyes cut out, according to police descriptions that were posted on social media.

In a separate incident, police said, two men entered the Wells Fargo bank in the 110 block of Congressional Lane in Rockville just before 11 a.m. Tuesday. The men demanded money from a bank teller. One of the men leapt over the counter and the other man fired a shot from a handgun into the ceiling of the bank. Both men fled from the bank without getting any money.

No one was injured in either incident.