Brussels: Belgium is joining the Netherlands in backing the creation of an international fund to finance access to birth control, abortion and sex education for women in developing countries in an attempt to make up for US President Donald Trump's ban on US funding.

Alexander De Croo, Belgium's minister for foreign trade and development, says he is fully behind the initiative of his Dutch counterpart to set up an international fund for safe abortions.

Alexander De Croo, deputy prime minister of Belgium. Credit:AP

"This decision of the White House has an immediate impact on the lives of millions of girls and women in developing nations," De Croo said on Wednesday.

Trump's executive memorandum signed on Monday reinstituted a ban on US funding to international groups that perform abortions or even provide information about abortions.