3:40 PM PT -- Sources at 1 OAK tell TMZ that A$AP Rocky was not targeted in Sunday morning's scuffle ... he simply got sucked in as a result of proximity. We're told a fight erupted at a table near the main stage, and as A$AP was exiting ... the commotion spilled over into his area. We're also told no arrests were made, and no injuries were reported.

A$AP Rocky is the latest celeb to deal with a would-be assault that ended in chaos over BET Awards weekend.

Rocky was attacked early Sunday morning while doing a gig at 1 OAK in L.A., where Kendrick Lamar also headlined and got treated to a birthday shout out.

Eyewitnesses tell TMZ that A$AP was jumped on by one man after the birthday song, which resulted in a massive scuffle near the main stage ... one that A$AP himself got mixed up in with security trying to break things up.

Law enforcement sources tell us they responded to an incident at 1 OAK around 1:57 AM from a club-goer who said security had struck him. By the time cops showed, the guy was gone ... and security said it was only a verbal exchange.

As we reported ... this is the 2nd altercation this weekend. Safaree had the misfortune of being jumped, allegedly at the hands of Meek Mill's crew.