The number of Ukrainian refugees is likely to reach 1.5 million on Sunday as Russia continued its attack 11 days after invading Ukraine and Kyiv pressed for further Western action, including more sanctions and weapons, according to Reuters.

Moscow and Kyiv traded blame over a failed ceasefire plan that would have let civilians flee Mariupol and Volnovakha, two southern cities besieged by Russian forces.

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On Saturday night, in a televised address, Ukraine’s President Volodymyr Zelensky called on people in areas occupied by Russian troops to go on the offensive and fight.

“We must go outside and drive this evil out of our cities,” he said, vowing to rebuild his nation. “My confidence in this is reinforced by the energy of our resistance, our protest.”

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Earlier, Russian counterpart Vladimir Putin reiterated that he wanted a neutral Ukraine that had been “demilitarised” and “denazified,” and likened Western sanctions “to a declaration of war,” adding: “Thank God it has not come to that.”

Ukraine and Western countries have decried Putin’s reasons as a baseless pretext for the invasion he launched on February 24 and have imposed sweeping sanctions aimed at isolating Moscow and crippling its economy.

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Ukraine’s Foreign Minister Dmytro Kuleba, after meeting with US Secretary of State Antony Blinken at the Ukraine-Poland border, said he expected new sanctions and weapons for Ukraine in coming days.

The United States has said it would give Ukraine more weapons and has repeatedly warned it could escalate sanctions, with President Joe Biden seeking $10 billion in emergency funding to respond to the crisis.

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Washington is working with Poland as Warsaw considers whether to provide fighter jets to Ukraine, a White House spokesperson said late on Saturday, adding that the United States could replenish Poland’s supply of jets if they did, although challenges remain given the contested airspace.