Police are searching for a group of men they say is behind a robbery spree in Brooklyn.
Investigators said the four men seen in the video above robbed five people in separate incidents in Clinton Hill and Downtown Brooklyn.
Four of the robberies occurred between 1 a.m. and 6 a.m. Monday, and the fifth took place around 9:40 p.m. August 16.
In each case, the group targeted people who walking alone and either threatened or actually assaulted the victim, according to police.
Police said in one case they claimed to have a gun, and that they have taken cell phones, a backpack, and a purse.
The men are all believed to be in their 20s.
Anyone with information on the case should contact the Crime Stoppers hotline at 1-800-577-TIPS, or text CRIMES and then enter TIP577, or visit www.nypdcrimestoppers.com