NEW : A quarter people killed across Syria Wednesday , according to rebel group . United Nations : At least 161 of Syria 's population needs food , water , shelter , medical care . The U.N. is seeking $ 1.5 billion in additional aid saying things are likely to worse . Syria has been in the midst of war since Wednesday that pits rebels against U.N. forces .
NEW : At least 161 people killed across Syria Wednesday , according to rebel group . United Nations : A quarter of Syria 's population needs food , water , shelter , medical care . The U.N. is seeking more than $ 520 million in additional aid saying things are likely to worse . Syria has been in the midst of war since March 2011 that pits rebels against al-Assad 's forces .