A man police believe has robbed as many as 14 businesses this year may have struck again - twice.

But detectives now believe the man may have some accomplices."We think there's at least two and possibly three of them," said Salt Lake Police Sgt. Mike Roberts.

The robbers disguise themselves with white ski masks and dark ski goggles and usually wear green army-type parkas with fur collars. Witnesses describe the bandits' height as anywhere from 5 feet 6 inches to 6 feet 2 inches, prompting detectives to believe there are at least two people who may be involved, taking turns doing the actual robberies.

The latest two targets were a Radio Shack store and an airport parking business.

About 12:40 a.m. Monday, a masked man pointed a dark-colored automatic handgun at the attendant at Park and Jet, 2300 W. North Temple, and demanded money. The man then removed a cash drawer containing more than $400 and ran away.

Friday, a man matching the same description robbed Radio Shack, 944 E. Fort Union Blvd. Two customers were about to enter the store about 9 p.m. when the man pointed a gun at them and told them to get back, a sheriff's report states.

The gunman walked into the store with his weapon drawn and ordered an employee to give him all of the money. He then left throught the back door with an undetermined amount of cash. Deputy sheriffs responded, but the man escaped.

Police say various types of businesses from tanning salons to pizza parlors have been robbed by men matching the same description since Jan. 4. Anyone with information about the suspects is encouraged to call the Salt Lake Police Department or the Salt Lake County Sheriff's office.