US President Joe Biden expressed skepticism about the ceasefire ordered by Russian President Vladimir Putin in Ukraine for Orthodox Christian Christmas services on Jan. 6 and 7.

“I'm reluctant to respond (to) anything Putin says. I found it interesting. He was ready to bomb hospitals and nurseries and churches on the 25th and New Year’s,” Biden told reporters Thursday.

“I mean, I think he's trying to find some oxygen,” he added.

Putin ordered his defense minister Thursday to order a ceasefire in Ukraine for 36 hours starting at noon on Jan. 6. The pause would allow Orthodox Christians to attend Christmas services, according to a statement from the Kremlin.