Two gunmen in black stormed a Middle Keys resort and roughed up two employees early Monday, demanding keys to the safe, but ultimately made off with only a cellphone, the Sheriff's Office reported Tuesday morning.

No one was seriously injured.

A front desk clerk and security guard at Hawk's Cay Island Resort, on Duck Key, told deputies the men came through a back door at 2 a.m. with black bandanas on their faces, according to an offense report.

One of the men walked up behind the clerk, grabbed her by the hair and threw her to the floor, where she cut her head, the report says. Shortly after that, the other robber pointed a black revolver at the security guard, who had just noticed a black duffel bag in a back room.

The attacker allegedly pushed him to the floor and punched him in the face, demanding keys to the safe, which the guard said he didn't have. The attacker took his iPhone 4S and walked away.

Then the two gloved gunmen reportedly tried to break open the safe with a 2-foot crowbar they had, but could not. They left, and the guard radioed someone who called 911.

Deputies arrived to find the clerk with blood on her head, hair and arms. She was treated and released at Fishermen's Hospital. The guard was not hurt.

The suspects were described as young black men in all-black clothing, including black hats and the black bandanas over their faces.

"Armed robberies are infrequent in the area and this was unusual because a resort was targeted," said Sheriff's Office spokeswoman Becky Herrin. "Right now detectives are working the case and we don't have the best descriptions, so anyone with information needs to call us."

Resort spokeswoman Holly Zawyer said the company was helping detectives with their investigation, but couldn't comment further.

"Obviously, our biggest concern is the safety of our guests and our associates, and thankfully, no one was seriously hurt," Zawyer said, adding it was the first such incident at Hawk's Cay, at Mile Marker 61 on Duck Key.

Anyone with information should call the Sheriff's Office at 305-292-7000. To remain anonymous, call Crime Stoppers of the Florida Keys at 1-800-346-TIPS. If a tip leads to an arrest, the caller is eligible for a cash reward.

alinhardt@keynews.com