Twenty-four killed in U.N. helicopter crash

UNITED NATIONS (Reuters) - Twenty-four U.N. staff and others have been killed in a helicopter crash in Sierra Leone, the United Nations says.

The helicopter, leased by the U.N. peacekeeping mission in the West African country, was on an operational flight in the western part of the country on Tuesday.

U.N. spokeswoman Marie Okabe said there were no survivors "in this tragic incident". Three Russian pilots were among the dead, she add