Mark Curry -- Hey, Delta ... All Black People Don't Carry Guns! (VIDEO)

2:40 PM PT -- Delta says it's taking Curry's "claims of discrimination very seriously." A rep for the airline adds they are in touch with Curry and investigating the incident.

Mr. Cooper strolled into Dallas/Fort Worth Airport with a loaded weapon! At least that's what a Delta first class agent thought ... according to Mark Curry.

The former star of "Hangin' with Mr. Cooper" was pissed off when he landed at LAX ... and told us about the "loaded" question. We all know it's a standard security question to be asked if you have any weapons or ammo -- but Mark is talking about a different situation.

Mark says the agent, who was black, asked him to his face if he was carrying a loaded weapon ON HIM. He adds the agent told him ... she thought she'd overheard Curry say he had a gun.

Watch the clip ... he's seriously freaked out, and angry about the incident, and has a warning to Delta about its black passengers.