(BUDAPEST) -- President Donald Trump threatened "severe tariffs" against Russia if a ceasefire deal isn't reached in 50 days over its war in Ukraine.
"We're very, very unhappy with them," Trump said of Russia during remarks in the Oval Office alongside NATO Secretary-General Mark Rutte on Monday.
"Tariffs at about 100%. You call them secondary tariffs, you know what that means," he added.
Trump also announced an agreement with NATO regarding weapons to assist Ukraine amid Russia's onslaught.
"We've made a deal today where we are going to be sending them weapons and they're going to be paying for them. We, the United States, will not be having any payment made," Trump said.
Rutte called the deal "really big" and said this is "Europeans stepping up."
The announcement comes after Russia launched four missiles and 136 drones into Ukraine overnight into Monday morning, according to Ukraine's air force.
Ukraine's air force said in a post to Telegram that 108 drones were shot down or otherwise neutralized during the latest attack, with 28 drones impacting in 10 locations. Falling debris from downed drones was reported in four locations, the air force said.
Russia's Defense Ministry, meanwhile, said its forces downed 11 Ukrainian drones overnight into Monday morning.
Russian President Vladimir Putin is continuing the long-range bombardment of Ukrainian cities despite criticism from Trump, whose months-long push for a ceasefire and eventual peace deal has thus far failed to achieve a breakthrough.
Trump had said Sunday that the U.S. would provide Kyiv with more Patriot surface-to-air systems to help defend against Russia's nightly bombardments.
Asked when he expected some weapons, including Patriot systems, to arrive in Ukraine, Trump told reporters on Monday, "We're going to have some come very soon, within days."
Rutte added that the next arms delivery to Ukraine will encompass a wider range of military equipment, extending beyond the Patriot missile systems.
Trump said Sunday that the U.S. would provide more "sophisticated" equipment to aid Kyiv in its defense against Russian attacks.
"We basically are going to send them various pieces of very sophisticated military equipment," Trump told reporters on Sunday. "They're going to pay us 100% for them, and that's the way we want it," Trump said.
Asked if he would still send 10 Patriot missiles to Ukraine -- as announced last week -- the president said the number has not been finalized but that Kyiv would be receiving more aid.
"I haven't agreed on the number yet, but they're going to have some because they do need protection," he said.
"But the European Union is paying for it," Trump added. "We're not paying anything for it, but we will send it. It will be business for us, and we will send them Patriots, which they desperately need, because Putin really surprised a lot of people."
"He talks nice and then he bombs everybody in the evening. There's a little bit of a problem there," Trump continued.
The Patriot surface-to-air missile system has become one of Ukraine's most important platforms during Russia's full-scale invasion, which began in February 2022. Since 2023, Patriots in Ukraine have been used to down drones, ballistic missiles and Russian aircraft.
Ukraine now fields at least six Patriots, two of which were provided by the U.S. and the others by different NATO allies.
Ukraine has other air defense platforms -- among them the European IRIS-T and SAMP-T systems -- but none have been so publicly celebrated by Ukraine for blunting Russian attacks. The system, which entered U.S. service in the 1980s, has even been credited with shooting down Russian hypersonic missiles.
Sen. Lindsey Graham told ABC News last week that Trump is "ready" to act on a sweeping Senate bill that would impose tariffs of up to 500% on countries that buy oil and gas from Russia.
Trump, Graham said Wednesday, is "trying to get Putin to the table, but Putin's not responding." The legislation will include a waiver allowing Trump to lift sanctions on countries purchasing Russian oil or uranium for 180 days, Graham said.
Responding to Trump's remarks on Sunday, Kremlin spokesperson Dmitry Peskov told reporters at a Monday briefing, "A lot has been said about the high cost and so on, now it seems that these supplies will be paid for by Europe," as quoted by Russia's state Tass news agency.
"Some things will be paid for, some things will not be paid for, but the fact remains that the supply of weapons, ammunition and military equipment from the United States has continued and continues to Ukraine," Peskov said,
Meanwhile, Trump's Russia-Ukraine envoy Keith Kellogg met with Ukrainian President Volodymyr Zelenskyy in Kyiv on Monday. Zelenskyy said they had a "productive conversation" in which they discussed possible sanctions against Russia.
"We discussed the path to peace and what we can practically do together to bring it closer," Zelenskyy said in a statement. "This includes strengthening Ukraine’s air defense, joint production, and procurement of defense weapons in collaboration with Europe. And of course, sanctions against Russia and those who help it."
ABC News' Hannah Demissie and Alexandra Hutzler contributed to this report.
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