The EU has announced further new sanctions against Russia over its invasion of Ukraine, closing its airspace to Russian aircraft and banning Russian state media outlets broadcasting in the bloc.

EU chief Ursula von der Leyen, announcing the measures, also said the European Union was taking the unprecedented step of financing arms to Ukraine, and was hitting Russian ally Belarus with sanctions for facilitating the invasion.

The Irish Government earlier announced it was to move to shut Irish airspace to Russian aircraft and carriers.

The measures come on top of sanctions Ms von der Leyen announced a day earlier that are about to be implemented: cutting some Russian banks out of the SWIFT interbank messaging network, banning all transactions with Russia's central bank, and added restrictions on Russian oligarchs.

The EU has also sanctioned Russian President Vladimir Putin and his Foreign Minister Sergei Lavrov.

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Together, the steps added up to the toughest stance the European Union has taken against a country, reflecting the bloc's horror and anger at Putin's assault on Ukraine, launched on Thursday.

"As the war in Ukraine rages on, and Ukrainians fight bravely for their country, the European Union steps up once more its support for Ukraine and the sanctions against the aggressor - Putin's Russia," Ms von der Leyen said in a broadcast address.

She said the airspace ban would prohibit flights into or over the EU by "every Russian plane - and that includes the private jets of oligarchs".

The move against Russian state media targeted its outlets Russia Today - known as RT - and Sputnik, and their subsidiaries. She said they "will no longer be able to spread their lies to justify Putin's war and to sow division in our Union".

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The EU's foreign policy chief Josep Borrell, at her side, said the measure involved "banning Russia Today and Sputnik from broadcasting in the European Union".

Ms von der Leyen said the sanctions against Belarus were aimed at "the other aggressor in this war", naming the regime of strongman Alexander Lukashenko.

"We will hit Lukashenko's regime with a new package of sanctions," she said.

"We will introduce restrictive measures against their most important sectors. This will stop their exports of products from mineral fuels to tobacco, wood and timber, cement, iron and steel.

"We will also extend to Belarus the export restrictions we introduced on dual use goods for Russia."

Belarusians helping Russia's military operation would also be sanctioned, she said.

Ms von der Leyen said the decision to provide funding for the purchase and delivery of arms to Ukraine was "a watershed moment for our Union".

Mr Borrell, who was to chair a virtual meeting of the EU's foreign ministers just after the declarations, said: "I will today propose to use the European Peace Facility for emergency assistance measures to finance the supply of lethal material to the Ukrainian army, as well as badly needed fuel, protective equipment and medical supplies."

He said "we are doing this because this war requires our engagement in order to support the Ukrainian army - because we live in unprecedented times".