Nassau County police are investigating two separate robberies Saturday evening in South Hempstead and Roosevelt.
In the first robbery, a man was leaving a laundromat at 322 Nassau Rd. in Roosevelt at 6:50 p.m. when five men came up to him, police said.
One of the men pointed what looked like a black automatic handgun at the victim, police said.
The men demanded the victim's money and phone, after which the victim was pistol-whipped in the head while the men went through his pockets, police said.
The men took the victim's cellphone, and the victim fled, police said. The victim said he then heard shots that sounded like they were made by a BB gun, police said.
The men -- described as being around 22 years old, between 130 and 160 pounds, and between 5-foot-6 and 5-foot-10 -- were last seen running north after the crime, police said.
The victim suffered pain and swelling to his ear, but he declined medical attention.
Later that night, at 9:55 p.m., two men went to the BP gas station at 470 Grand Ave. in South Hempstead, where one of the men pointed a gun at the 29-year-old male employee and demanded that he open the register, police said.
The men took money and two cartons of Newport cigarettes before leaving the store, police said.
The victim, who was not injured, described the suspects as 5-foot-6 and 150 pounds. The one with a handgun wore a blue hooded sweatshirt, black pants, a black mask, red sneakers and red gloves. The other was wearing a black hooded sweatshirt, a green do-rag, a black mask, a white T-shirt on top of his head, black pants and black gloves.
Police ask anyone with information on either case to contact Crime Stoppers at 800-244-TIPS. All calls will be kept confidential.