International Criminal Court judges on Monday postponed the start of the crimes against humanity trial of Kenya's new vice president William Ruto, saying a number of administrative issues still needed to be cleared.

"The Chamber vacates the trial date of May 28, 2013," the three-judge bench said in a decision made at the court's headquarters in The Hague.

A Kenyan court on Monday sentenced two Iranians to life in prison on terror-related charges, including the possession of explosives allegedly to be used in bomb attacks.

"I shudder to imagine the amount of damage that could have been seen," Judge Kiarie Waweru Kiarie told the court in the capital Nairobi.

Two Iranians were found guilty by a Kenyan court Thursday for possessing explosives allegedly for use in bomb attacks.

Ahmed Mohammed and Sayed Mansour, who were arrested last June, were found guilty of possessing 15 kilos (33 pounds) of the powerful explosive RDX. The court said they had suspected links to a terror network planning bombings in Mombasa and Nairobi.

They crossed the line in front of Buckingham Palace with black ribbons on their chests and the Boston Marathon victims on their minds.

Six days after bombs exploded near the Boston finish line, the London Marathon sent out a powerful message of solidarity with the U.S. city and its victims Sunday and put the spotlight back on the sport and away from terrorist fears.

Flooding in Kenya after heavy seasonal rains has claimed 63 lives and forced tens of thousands from their homes in the past month, Vice-President William Ruto said Thursday.

"As at now, 63 people have been killed," Ruto told reporters, watching as five tonnes of food and other essential items were prepared to be flown to affected areas at a military airbase in the capital Nairobi.

Thirty-six people have died in three weeks of flooding in Kenya and more than 2,000 families have been displaced, a senior civil servant said Thursday.

Heavy rains have lead to "the loss of 36 lives, 2,393 households displaced and the loss of property and infrastructure," the second-in-command at the Special Programs Ministry Andrew Mondoh told journalists.

Uhuru Kenyatta was sworn in as Kenya's fourth president on Tuesday to thunderous cheers from tens of thousands of supporters, despite facing trial on charges of crimes against humanity.

"I do swear that I will be faithful and bear true allegiance to the Republic of Kenya," said Kenyatta, the son of the country's first president, clutching a bible as he took the oath of office.

Kenya's Supreme Court on Saturday upheld Uhuru Kenyatta's presidential election victory, throwing out a bid by his rival for a new poll amid fears of violence.

The court unanimously ruled that the March 4 election had been fair and credible and that Kenyatta and his running mate had been "validly elected".

At least seven people including one police officer were shot dead in gun battles in the early hours of Thursday after a gang attacked a Kenyan coastal casino, police said.

"Six of the attackers were shot dead but they also killed one of our police officers," regional police chief Aggrey Adoli told Agence France Presse.

Kenya's Supreme Court on Monday ordered a recount of votes cast at 22 polling centers, after presidential elections in which a second-round run-off was only avoided by the narrowest of margins.

"Retallying is to be done in 22 polling stations," said Supreme Court judge, Smokin Wanjala.