U.S.-funded contraceptives worth nearly $10 million are being sent to France from Belgium to be incinerated, after Washington rejected offers from the United Nations and family planning organisations to buy or ship the supplies to poor nations, two sources told Reuters.

A spokesperson for the U.S. State Department confirmed to Reuters on Wednesday that a decision had been taken to destroy the stock.

The supplies have been stuck for months in a warehouse in Geel, a city in the Belgian province of Antwerp, following President Donald Trump's decision to freeze U.S. foreign aid in January.

They comprise contraceptive implants and pills as well as intrauterine devices to help prevent unwanted pregnancies, according to seven sources and a screengrab shared by an eighth source confirming the planned destruction, according to Reuters.