Ukrainian President Volodymyr Zelenskyy has called on delegates at the Munich Security Conference in Germany to continue providing military support for his country's fight against Russia.

Zelenskyy delivered a speech to the international conference on Saturday.

The president accused his partners of keeping Ukraine in "an artificial shortage of weapons" that is allowing Russia to adapt to the current intensity of combat operations.

Zelenskyy also held separate talks with his counterparts on the sidelines of the conference.

He urged US Vice President Kamala Harris to immediately urge the approval of additional funding to Ukraine.

US Congressional deliberations on an emergency spending bill have hit an impasse due to Republican opposition.

Harris later told reporters that she will work together with President Joe Biden to secure the resources and weapons that Ukraine needs to succeed.

NATO Secretary General Jens Stoltenberg also expressed concern during the security conference. He said "the lack of decision in the US Congress means that the flow from the US has gone down." He added, "Every week we wait means that there will be more people killed on the frontline in Ukraine."

Attention is focused on whether progress can be achieved on further aid from European countries and the United States, the largest supporter of Ukraine.