Four Republican representatives in Congress called on US President Joe Biden to send cluster munitions to Ukraine. In a letter sent to the White House, they say the president's administration fears that such an action would be seen by Russia as an escalation of the conflict.

Kiev urged members of Congress to pressure the White House to approve the arms shipment.

The letter criticizes Biden for his "unwillingness to provide Ukraine with the right type and sufficient quantity of long-range and maneuverable weapons" to achieve a breakthrough in the fight against Russian forces.

The letter was signed by Jim Risch, the top Republican on the Senate Foreign Relations Committee, Roger Wicker, the top Republican on the Senate Armed Services Committee, Mike McCaul, chairman of the House Foreign Affairs Committee, and Mike Rogers, the committee chairman. the armed forces in the House of Representatives.

Cluster munitions are banned by more than 120 countries in the world.