Germany’s defense minister Boris Pistorius said Russian President Vladimir Putin should be judged by his actions, not words, and that he is “continuing to play for time” with “lip service” after his call with U.S. President Donald Trump.

Trump described his call with Putin as “excellent” and said direct Russia-Ukraine talks on peace should continue immediately. Putin said he was open to working on a memorandum with Ukraine that included a ceasefire.

The U.S. president is still trying to broker peace between Russia and Ukraine, saying the loss of lives, destruction of property, and vast cost to American taxpayers in military aid to Kyiv is intolerable.

“I think it’s fair to say that yesterday’s conversation once again confirmed: statements are being made by the Russian side, but there is still no evidence for the declared intentions,” Pistorius told reporters in Brussels, Belgium, according to a translation of his remarks in German.

Pistorius said Putin is “still not making any concessions” and only talks about a ceasefire “on his own terms”. He was heading into a meeting of European defense ministers to discuss, among other things, how best to strengthen Ukraine.

“Vladimir Putin is evidently continuing to play for time—that is also very clear to see. And so, even though Russia is willing to talk about a memorandum, there is still no ceasefire in sight,” Pistorius said.

“That is, at least, my assessment. There is no timeline. So unfortunately, one has to say that Putin still does not appear to be seriously interested in peace or a ceasefire—at least not under conditions that are acceptable to others.”

He added: “I hear the words, I hear the statements, but in the end, I stick to my approach of saying—I no longer judge words, only deeds and actions. I believe that helps all of us more than speculating about the seriousness of intentions.”

Pistorius noted the massive Russian drone attack on Ukraine over the weekend.

“That gives deep insight into the actual intentions. Attacks with an estimated more than 270 drones—that speaks a clear language,” he said. “Several people in Ukraine were killed, many injured. And I believe that speaks far more clearly than the lip service we’ve heard so far.”

Germany is a NATO ally and has sharply increased its defense spending since the Russian invasion of Ukraine. The U.S. is pushing NATO allies to commit to spending 5 percent of GDP on defense.

This is a developing article and more information will be added soon.