Medical aid plane arrives in Yemen's rebel-held capital as humanitarian groups face shortages

Aid workers unload humanitarian relief supplies for civilians affected by a Saudi-led airstrike campaign from a cargo plane at the airport in Sanaa, Yemen, Saturday, April 11, 2015. (AP Photo/Hani Mohammed) (The Associated Press)

Aid workers unload a cargo plane with badly needed humanitarian relief supplies in Yemen's embattled capital following Saudi-led airstrikes that started more than two weeks ago, in Sanaa, Yemen, Saturday, April 11, 2015. (AP Photo/Hani Mohammed) (The Associated Press)

International Rescue Committee workers gather after they unloaded badly needed humanitarian relief supplies in Yemen's embattled capital following Saudi-led airstrikes that started more than two weeks ago, in Sanaa, Yemen, Saturday, April 11, 2015. (AP Photo/Hani Mohammed) (The Associated Press)

The International Committee of the Red Cross says a plane loaded with badly needed aid has landed in Yemen's rebel-held capital.

Photos posted on the organization's official Twitter account show aid workers unloading the supplies Saturday. The group says the shipment consists of more than 35 tons of medical aid, generators and emergency sanitation equipment.

The first such delivery to the capital since a Saudi-led air coalition began airstrikes against the Houthi rebels more than two weeks ago landed on Friday. Saturday's shipment is more than double the size of the first.

Aid groups say they are struggling to cope with the rising casualty numbers and shrinking food and fuel supplies.

A smaller aid delivery arrived in the southern port city of Aden by boat earlier this week.