Tyrese Gibson couldn't hold back the tears when he visited his Fast and the Furious costar Paul Walker's memorial site Sunday afternoon.

Paul and his longtime friend and business partner Roger Rodas died on Saturday following a fiery car crash. The Los Angeles County Sheriff's Department said "speed was a factor" in the accident.

Tyrese went to the Santa Clarita, Calif. site of the accident to pay tribute to his friend. E! News' Marcus Mulick tweeted the picture above and wrote, "Tyrese just showed up at Paul Walker's crash site. Didn't say a word, just cried and left." Videos posted on social media (including the one below from the Los Angeles Times' James Barragan) also show a somber scene: Fans stood silently as Tyrese cried aloud.

While most people left flowers behind, the actor took something with him: a piece from the wreckage. "I will keep your energy with me forever #AshesOfAnAngel fast family around the world we live you and we love you Paul is the heartbeat of this franchise and were gonna see to it that his energy and presence lives on forever #myhearthurtssobad," he captioned an Instagram picture.