Security guard pistol-whipped during Forum Shops armed robbery

People walk near the entrance of The Forum Shops at Caesars on Monday, May 12, 2014. A mix of new retail stores and restaurant will be opening soon in the 22-year-old mall located in Caesars. The Forum Shops receives 85 percent of their business from tourists and 15 percent from locals. (Jeff Scheid/Las Vegas Review-Journal)

A security guard at the Rolex store in the Forum Shops at Caesars Palace was pistol-whipped late Thursday during an armed robbery.

About 20 minutes before the luxury mall at 3500 Las Vegas Blvd. South closed at 11 p.m., five black males in their late teens to mid-20s smashed some of the shop’s storefront glass and display cases, making off with an unknown number of watches, Metropolitan Police Department Lt. Charles Jenkins said.

At some point during the robbery, at least one of the robbers whacked the store’s security guard in the head with a firearm. The guard was taken to University Medical Center for treatment.

No suspects were in custody as of 12:15 a.m. The group of five left the luxury mall in a vehicle, but no vehicle description had been released as of early Friday.

Contact Rachel Crosby at rcrosby@reviewjournal.com or 702-387-5290. Find @rachelacrosby on Twitter.