Luxembourgian flag carrier cargo airline Cargolux said it will donate €3.5 million (US$3.8 million) to support Ukraine humanitarian efforts amid the persisting conflict between Russia and Ukraine.

The cargo carrier said the donation comes after the United Nation's emergency appeal for US$1.7 billion in support to urgently deliver humanitarian aid to people in Ukraine and those dispersed amid the war.

Cargolux said it will donate €1 million each to UNICEF and the UNHCR, the UN Refugee Agency, as well as €500,000 to Médecins Sans Frontières (MSF).

It added that another €1 million will be distributed amongst initiatives by local organisations and communes at Cargolux's home base in Luxembourg.

"It is with great regret that we witness the unfolding of this conflict. We hope that our donation will positively contribute to the relief efforts underway in Ukraine and at the borders of those countries where people are arriving to seek refuge in the EU," Richard Forson, president and chief executive of Cargolux said.