A United States (US) based medical aid organisation is calling on the Donald Trump administration to reconsider a new travel ban that threatens to block Haitian children with critical heart conditions from accessing urgent care abroad.

The Trump administration announced in a proclamation on Wednesday that it will ban nationals from Haiti from entering the United States and partially limit Cubans and Venezuelans from coming into the country.

U.S. Rep. Mike Lawler, a fellow Republican, urged the Trump administration to reverse its decision. Lawler's 17th District includes Spring Valley, home to the second-largest Haitian diaspora, per capita, in the U.S.