Man robbed at gunpoint at Brooklyn apartment building

A man was robbed at gunpoint by five men inside of a Brooklyn apartment lobby.
The incident happened on Sept. 3, near Pitkin and Christopher Avenues around 10 a.m.
Police say one of the five suspects pulled a gun on the victim before stealing cash, jewelry and a cellphone.
The items valued around $2,100 according to police.
All of the suspects are believed to be in their 20s. Police released surveillance video of the suspects.
Anyone with information is asked to call Crime Stoppers at 1-800-577-TIPS.