Evidence

A search found this exact claim reported near-verbatim by Al Jazeera ('Fighting escalates in Yemen; Houthi attacks trigger alerts in Saudi Arabia') and syndicated by Yahoo News (via AP-style wire reporting), both stating that Yemen's internationally recognized government accused the Houthis of killing three children while Houthi spokesman Yahya Saree claimed Saudi forces had launched 54 airstrikes across six provinces in 12 hours. The reports place this within a broader escalation of Houthi-Saudi hostilities amid regional tensions tied to the US/Israel-Iran conflict, with WHO figures cited for over 1,000 casualties since a specific date. No independent forensic or fact-check organization (Reuters Fact Check, AFP Fact Check, Bellingcat, EUvsDisinfo) appears to have specifically adjudicated the underlying casualty claims — these are reported as competing, unverified accusations from the two warring parties themselves, which is standard wartime reporting practice rather than a resolved factual dispute.