PHILADELPHIA (CBS) – Philadelphia police hope you can help them identify a pair of armed robbery suspects.

It happened at the Family Shopping Place on South Warnock Street in South Philly back on Oct. 9.

Surveillance video from inside shows the two suspects scouting out the convenience store before coming back about a half hour later and robbing the clerk at knifepoint and stealing merchandise.

If you recognize either suspect, you’re asked to call police.