RIYADH: The fourth Saudi relief plane carrying 90 tons of food and shelter to be distributed to those affected by the floods in Libya departed from Riyadh on Tuesday  A specialized team from the King Salman Humanitarian Aid and Relief Center will supervise the aid delivery process in coordination with the Libyan Red Crescent.  The massive flood that is believed to have killed as many as 4,000 to 11,000 people – possibly more – with thousands unaccounted for came as the war-scarred North African country was lashed by the hurricane-strength Storm Daniel on Sept. 10.  Traumatized residents, 30,000 of whom are now homeless, badly need clean water, food and basic supplies amid a growing risk of cholera, diarrhea, dehydration and malnutrition, UN agencies warn.