Doctors Without Borders has blamed five deaths on the delays . Group said air traffic congestion in Port - au - Prince was costing lives on the ground . Canadian military blocking landing strips at the Dominican Republic 's air base at San Isidro . Canadian military working to open up an airfield in southern city of Jacmel , Haiti .
Doctors Without Borders has blamed five deaths on aid delays . Group said air traffic congestion in Port-au-Prince was costing lives on the ground . U.S. military obtained landing rights at the Dominican Republic 's air base at San Isidro . Canadian troops working to open up an airfield in southern city of Jacmel , Haiti .