A man armed with a semi-automatic handgun robbed a San Luis Obispo hotel Thursday night, according to police.

The robbery at the Lexington Inn at 2050 Garfield Street happened at 9:40, according to a news release from the San Luis Obispo Police Department.

A man wearing a black ski mask and black clothing reportedly entered the hotel and approached the front-desk clerk. He then pulled out a black semi-automatic handgun and demanded money.

The man ran from the hotel after receiving an undisclosed amount of cash from the clerk.

Police officers checked the area but were unable to find the suspect, who is described as a white man in his early 20s, approximately 5 feet 10 inches tall and 150 pounds with light brown eyebrows and dark circles under his eyes.

It is unknown if a vehicle was associated with the robbery.

No one was injured in the incident.