South Korean President Roh Moo-hyun sent a condolence message to British Prime Minister Tony Blair on Friday over a series of terrorist attacks in London on Thursday.
"We express our deep condolences to the victims of a series of terrorist bomb attacks in London and hope early recovery of those injured," a news release issued by the South Korean Presidential Office quoted Roh as saying in the message.
The South Korean president also condemned the terrorist act against innocent people as an inhumane and uncivilized crime that should not be tolerated.
Roh vowed his country will continue providing support to the international anti-terrorism war.
Earlier Friday, the South Korean Foreign Ministry also issued a statement condemning the attacks.
On Thursday night, the Foreign Ministry issued a warning to South Korean nationals in London, advising them not to go outdoors.
Up to now, there has been no report of injury or death of South Koreans in London, according to the ministry.
A string of blasts hit London's underground trains and a double- decker bus during the rush hour on Thursday morning, which left at least 37 dead and hundreds injured.
The secret Organization of Al-Qaeda Jihad in Europe claimed responsibility for the attacks on its website, but yet to be confirmed. A massive hunt is underway for the attackers and a Scotland Yard spokesman said the investigation is a very high priority.