UNITED NATIONS - The UN Security Council on Thursday condemned "in the strongest terms" the terrorist attacks in Morocco, which killed at least 15 people, saying that "any acts of terrorism are criminal and unjustifiable."

"The members of the Security Council condemned in the strongest terms the terrorist attack that occurred in Marrakech, Kingdom of Morocco, on April 28, 2011, causing numerous deaths and injuries," the Security Council said in a press statement issued here late Thursday.

The Council members "expressed their deep sympathy and sincere condolences to the victims of this heinous act and to their families, and to the people and government of the Kingdom of Morocco," the statement said.

"The members of the Security Council reaffirmed that terrorism in all its forms and manifestations constitutes one of the most serious threats to international peace and security, and that any acts of terrorism are criminal and unjustifiable, regardless of their motivation, wherever, whenever and by whomsoever committed," the statement said.