NAIROBI, Kenya (CNN) -- George Obama, the half brother of U.S. President Barack Obama, has been arrested by Kenyan police on a charge of possession of marijuana, police said Saturday.

George Obama was arrested in Kenya on a charge for possession of marijuana, according to police.

Inspector Augustine Mutembei, the officer in charge, said Obama was arrested on charges of possession of cannabis, known in Kenya as Bhang, and resisting arrest. He is scheduled to appear in court Monday, Mutembei said.

He is being held at Huruma police post in the capital of Nairobi.

CNN Correspondent David McKenzie talked with George Obama at the jail where he is being held. Speaking from behind bars, Obama denied the allegations.

"They took me from my home," he said, "I don't know why they are charging me."

George Obama and the president barely know each other, though they have met before. George Obama was one of the president's few close relatives who did not go to the inauguration in Washington last week.

In his memoir, "Dreams from My Father," Barack Obama describes meeting George as a "painful affair." Barack Obama's trip to Kenya meant meeting family he had never known.

McKenzie tracked down George Obama in August 2008 and found him at a small house in Huruma, a Nairobi slum, where he lives with his mother's extended family. His birth certificate shows he is Barack Obama's half brother.

The two men share the same Kenyan father. In the memoir, Barack Obama struggles to reconcile with his father after he left him and his mother when he was just a child.

Barack Obama Sr. died in a car accident when George was just 6 months old. Like his half brother, George hardly knew his father.

George was his father's last child and had not been aware of his famous half brother until he rose to prominence in the Democratic primaries last year.