Dwayne "The Rock" Johnson posted a message blasting a certain someone who's been working with him on "Fast 8," which has been filming in Atlanta this summer.

An image from the clip Tyrese Gibson and Ludacris posted from the "Fast 8" set.

Credit: Jennifer Brett

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Credit: Jennifer Brett

MORE: A mountain of wrecked cars on the Atlanta "Fast 8" set

"My female co-stars are always amazing and I love 'em," The Rock posted in an open message on his official, public Instagram page. "My male co-stars however are a different story. Some conduct themselves as stand up men and true professionals, while others don't. The ones that don't are too chicken (bleep) to do anything about it anyway. Candy asses."

TMZ posits that he's been feuding with Vin Diesel.

Vin didn't respond directly but did post a cryptic video message on Instagram:

"Give me a second and I will tell you everything .. EVERYTHING," he says at the end of the clip.

Wonder what he's talking about? See for yourself:

Meanwhile, Tyrese Gibson and Ludacris seem to be staying above the fray, and posted this upbeat message from the set. (The below clip is edited by about one second to excise an unprintable (and unpostable) word - see the entire thing at Tyrese's Instagram page, just keep the volume down if you're at work!)