Iranian Supreme Leader Ayatollah Ali Khamenei has taken aim at Israel over social media in a first-ever Hebrew-language message posted on X, formerly Twitter, as the country continues to battle with a comprehensive attack launched by Hamas over the weekend.

“Zionist Tyrants: You will never arise from your defeat on the Sabbath, the 7th of October. You brought this calamity upon yourselves,” Khamenei tweeted Tuesday, as translated from Hebrew to English.

The message followed a televised speech earlier Tuesday in which Khamenei lauded Hamas for its brazen, multi-pronged assault that has killed more than 1,000 Israelis since Saturday. He denied that Iran played a role in the operation.

U.S. and Israeli officials have said they had no evidence of a direct Iranian role in the attack, though they have noted Tehran’s longstanding support for Hamas.