Yemen’s Iran-backed Houthis have joined the US-Israeli war against Iran, carrying out their first military operation against Israeli targets since the conflict started on February 28.

The death toll from U.S. airstrikes on Houthi-controlled areas in northern Yemen since March 15 has risen to 61, with 139 others injured, the Houthi group announced.

One person has been killed in US airstrikes in Yemen.

The Trump administration attempted on Tuesday to manage the fallout after a magazine journalist revealed he had been unintentionally included in a secret group discussion of highly sensitive war plans, while Democrats called for top officials to resign over the security breach.

North Korea has called on the international community to oppose what it describes as U.S. "hooliganism" following airstrikes on Yemen, according to state media reports on Tuesday.

The UN is concerned about the US strikes on Yemeni territory controlled by the Ansar Allah (Houthis) movement and calls on all parties to cease military activity.

At least one person has been killed and several others were wounded after Israeli warplanes carried out air strikes across Houthi-controlled areas of Yemen, News.az reports citing Al Jazeera.

The head of the World Health Organization (WHO) said he was at Yemen's Sanaa airport when it was targeted by Israeli airstrikes, News.az reports citing Sky news.

Houthi rebels in Yemen claimed that Israeli airstrikes on Thursday targeted the rebel-controlled capital of Sanaa and the port city of Hodeida, after several days of Houthi missile launches triggered sirens in Israel, News.az reports citing The Washington Times.

Israel has carried out air strikes on the Houthi-controlled Red Sea port of Hodeidah in Yemen, a day after a drone launched by the group hit Tel Aviv, News.Az reports citing BBC.