Medford police are hunting for a man who showed a gun and grabbed cash in a robbery at Circle K Thursday night.

Medford police are hunting for a man who showed a gun and grabbed cash in a robbery at Circle K Thursday night.

About 11:30 p.m., a man wearing a black baseball hat, black hooded sweatshirt, blue jeans and a green cloth covering his nose and mouth entered the convenience store on the corner of Riverside Avenue and Barnett Road and demanded money from the clerk, police said in a news release this morning. The robber showed a handgun in his waistband. He took an undisclosed amount of cash and left the store, running northeast.

A police dog called to the scene tried to find the man, but was unsuccessful, Lt. Bob Hansen said in today's news release.

The robber is described as a white man, 6 feet to 6 feet 3 inches tall with a thin build.

Investigators are looking into the possibility that this suspect may be connected to two other recent armed robberies: one in Ashland on June 17, and one in Medford on June 21.

Police ask anyone with information about this robbery to call Medford Police Detective Bill Ford at 541-774-2236.