Actor John Cusack apologized after he retweeted a meme that he later admitted was anti-Semitic.

“It’s clear that even if it was Israel’s flag & even if you don’t have antisemitic bone in your body, it is still an antisemitic cartoon. Because it deploys anti jewish stereotypes in its attacks on Israel, even if those critiques about state violence are legit I mistakenly retweeted an alt right account I thought was agreeing With the horrible bombing of a hospital in Palestine,” Cusack said Monday on Twitter.