President Barack Obama’s Kenyan half brother George has been arrested by Kenyan police for alleged cannabis possession.

George Obama was arrested on Friday in Nairobi with one joint of marijuana police chief Joshua Omokulongolo said.

“They took me from my home,” George told reporters in Nairobi from his jail cell. “I don’t know why they are charging me.”

George and the U.S. president had the same father but barely know each other. He was one of the few close relatives who did not attend the president’s inauguration ritual in Washington.