A masked man who attempted to rob a Las Vegas Dairy Queen with a 3-foot-long samurai sword was shot in the chest and killed by a restaurant clerk, KLAS reports.

(RELATED: Alabama Woman Shoots Home Intruder to Protect Herself and Her Ax- and Knife-Wielding Daughters)

The incident reportedly occurred at around 12:19 p.m. on Sunday. The clerk fired a total of two rounds from a handgun at the would-be robber, according to police.

The suspect, whose identity has not been released yet, was transported to Sunrise Hospital where he was pronounced dead, KLAS reports.

Metro Police Lt. Les Lane tells the Las Vegas-Journal the sword was at least three-feet long.

Authorities say the shooting appears to have been in self-defense but that detectives were investigating whether the gun used was properly registered. No charges have been filed against the clerk at this time.

They say only two employees and no customers were present at the time of the shooting.

Police have also arrested a female in connection to a sword-wielding, masked man who tried to rob the Dairy Queen.

The investigation indicated the suspect had been dropped off in front of the store moments before the crime by a female who was later identified as Carol Matteo

Matteo, who is 47-years-old and resides in Las Vegas, was arrested in connection with this event and has been charged with robbery with a deadly weapon, conspiracy to commit robbery and burglary.

The Associated Press contributed to this report. Front page image courtesy of KLAS/Gawker.