Health officials report dozens of casualties in Sanaa.
Israeli strikes have hit Yemen's capital, Sana'a, in retaliation for Houthi rockets fired towards Israel, with Houthi health officials saying the attack had killed six people.
Sunday's attacks were the latest in more than a year of direct attacks and counterattacks between Israel and Houthi militants in Yemen, part of a continuation of the war in Gaza.
The Israeli military said its targets included a military compound housing the presidential palace, two power plants and a fuel storage site.
A spokesman for the Houthi health ministry said 86 people were also injured, in a final toll posted on X.
The Israeli military said: "The strikes were carried out in response to repeated attacks by the Houthi terrorist regime against the State of Israel and its civilians, including the launch of surface-to-surface missiles and UAVs towards Israeli territory in recent days."
On Friday, the Houthis said they had fired a ballistic missile towards Israel in their latest attack, which they said was in support of Palestinians in Gaza. An Israeli air force official said on Sunday that the missile most likely carried several small munitions "intended to explode upon impact."

"This is the first time this type of missile has been launched from Yemen," the official said.
Since Israel's war in Gaza against the Palestinian militant group Hamas began in October 2023, the Iran-aligned Houthis have attacked ships in the Red Sea in what they describe as acts of solidarity with the Palestinians.
They have also frequently fired rockets at Israel, most of which have been intercepted. Israel has responded with strikes on Houthi-controlled areas in Yemen, including the vital port of Hodeidah.

Abdullah Qader al-Murtada, a senior Houthi official, said on Sunday that the Houthis, who control most of Yemen's population, will continue to act in solidarity with Palestinians in Gaza.
“(Israel) should know that we will not abandon our brothers in Gaza, whatever the sacrifices,” he said in X.
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