At least 13 people have been killed in an attack at the airport in Yemen's second city of Aden as the new government arrived from Saudi Arabia, security sources and medics say.
There was at least one explosion as ministers were preparing to disembark.
Prime Minister Maeen Abdulmalik Saeed said he and his cabinet were "fine".
Information Minister Moammer al-Eryani accused the rebel Houthi movement of carrying out what he called a "cowardly terrorist act".
Yemen has been devastated by a conflict that escalated in 2015, when a Saudi-led coalition of Arab states launched a military operation to defeat the Houthis and restore President Abdrabbuh Mansour Hadi's rule.
The fighting has reportedly left more than 110,000 people dead; triggered the world's worst humanitarian disaster, with millions on the brink of famine; and left the country even more vulnerable to the Covid-19 pandemic.
Video footage of Wednesday's incident showed that there was a large blast as passengers began leaving the plane that had flown the new cabinet to Aden.
A crowd that had gathered on the tarmac to welcome the ministers fled as thick smoke billowed from the airport terminal. The sound of gunfire was heard soon afterwards.
An AFP news agency correspondent reported hearing at least two blasts in total, as did Minister for International Co-operation Najeeb al-Awj.
The cause was not clear, but a security source told Reuters news agency that three mortar shells landed on the terminal.
Saudi television channel Al-Hadath meanwhile broadcast a video that it said showed a missile hitting the tarmac and exploding.
In August 2019, 36 people were killed in a Houthi missile attack on a military parade in Aden.-BBC
