Barack Obama to actor Robin Williams

Robin Williams has passed away at 63 years old. The actor was found dead at his home in Tiburon, California, this morning, several sources have confirmed. The cause of death is believed to be suicide, according to law enforcement officials.

"He has been battling severe depression of late," his media representative Mara Buxbaum told CNN. "This is a tragic and sudden loss. The family respectfully asks for their privacy as they grieve during this very difficult time." He leaves his wife Susan Schneider and three children from previous marriages behind.

President Barack Obama has paid a tribute to actor Robin Williams following news of his sudden death. Obama released a statement on behalf of himself, wife Michelle Obama and daughters Malia, 16, and Sasha, 13.

"Robin Williams was an airman, a doctor, a genie, a nanny, a president, a professor, a bangarang Peter Pan, and everything in between. But he was one of a kind," he said, referring to some of Williams' famous film roles. "He arrived in our lives as an alien - but he ended up touching every element of the human spirit." Obama also said Williams "gave his immeasurable talent freely and generously to those who needed it most."