The lives of patients are at risk due to fuel shortages affecting some of Haiti's major hospitals, the UN children's agency Unicef warns.
Supplies have been disrupted for weeks because lorry drivers are too scared to brave roads controlled by gangs which engage in kidnappings for ransom.
Roadblocks erected by protesters angry at the lack of security have further hampered deliveries.
Local media said fresh protests and a strike were planned for Monday.
