More than 300 families were affected by flood damage in the Gaza Strip last week, an international aid group said Tuesday. Severe storms and heavy rainfall destroyed the homes of seven families and 15 families were evacuated in northern Gaza town Beit Lahiya, Oxfam said. Several families refused to move into temporary housing for fear their homes would not be repaired if they vacated, the aid group added. Gaza authorities have set up telephone line for families in need of help.