Lamar, 33, was pulled over by police in the early hours of today (30 August) while behind the wheel of a white Mercedes on the 101 Freeway in California, US.
According to reports, officers spotted him driving at speeds of 50mph and, following roadside tests, was taken to a nearby station.
The LA Times have stated that a report by the Californian Highway Patrol found Lamar showed "objective signs of intoxication and was unable to perform field sobriety tests as explained and demonstrated".
Earlier this week, we told how Lamar had been rocked by claims that his marriage to Khloe is on the rocks.
Reports from the US said the basketball player has been battling a drug addiction, however his rep did not respond when Reveal put the allegation to him. Khloe's rep, meanwhile, had no comment to make.
Yesterday, Khloe, 29, posted a selfie to Twitter which showed her starring at the camera. Alongside it, she commented with a kissing symbol.