U.N. disappointed by attack on Syria aid convoy, vows to keep trying to bring help

UNITED NATIONS (Reuters) - U.N. humanitarian chief Valerie Amos expressed deep disappointment on Saturday after an aid convoy came under fire in a besieged rebel district of the Syrian city Homs, though she vowed to keep pushing to deliver humanitarian assistance to Syria's neediest.

"I am deeply disappointed that the three-day humanitarian pause agreed between the parties to the conflict was broken today and aid workers deliberately targeted," Amos said in a statement.