(CNN) -- The Kenyan prime minister is scheduled to leave the hospital over the weekend, his spokesman said Friday, after undergoing a procedure to relieve pressure from his brain.
Prime Minister Raila Odinga was hospitalized late Monday after complaining of fatigue, his spokesman Dennis Onyango told CNN by phone.
He later underwent a procedure to remove fluids that were putting pressure on his brain, according to the spokesman.
"The doctors said then that he'll be discharged in about five days, and they haven't said otherwise so far," he said. "In fact, he can leave now, but doctors are worried that he'll get a rush of visitors at home and and won't get any rest."
Before the surgery, the prime minister was on a whirlwind national tour to campaign for a new constitution set to be approved by Kenyans in an August referendum.
His aides downplayed his diagnosis at first, saying he was being treated for fatigue.
"We were not trying to control any information," his spokesman said. "Preliminary tests did not show a problem with his brain."
The president was declared the winner, prompting the opposition and many independent observers to say the vote was rigged.
The outcome led to clashes that killed more than 1,000 and displaced hundreds of thousands.