Israel struck multiple targets allegedly linked to the Houthi movement in Yemen, including Sanaa International Airport, and Houthi media said at least six people were killed, Reuters reports.

The Israeli military said that in addition to striking the airport, it also hit military infrastructure at the ports of Hodeidah, Salif and Ras Kanatib on Yemen’s west coast. It also attacked the country’s Hezyaz and Ras Kanatib power stations.

The Houthi-controlled Saba news agency said that three people were killed in the strikes on the airport and three were killed in Hodeidah, while 40 others were wounded in the attacks.

Later yesterday, the Houthis said they were ready to respond quickly to the attack and meet “escalation with escalation”, Houthi-run Al Masirah TV reported. There was no immediate comment from Israel on the incident.

UN Secretary-General Antonio Guterres described the Israeli air strikes as “especially alarming” after “a year of escalatory actions by the Houthis”, said a UN spokesperson.