Further deterioration in the security situation in Yemen has forced the closure of Sanaa International Airport.

Four explosions rocked an air force base next to the property on Sunday, prompting the temporary closure of the commercial airport.

No cause for the explosions, which destroyed to fighter jets stationed there, wad given by officials.

There were no reports of casualties and no immediate claims of responsibility for an attack.

Capital Sanaa has been the scene of deadly clashes between troops loyal to president Ali Abdullah Saleh and dissident soldiers and armed tribesmen who have thrown their support behind protests that have rocked his regime for much of the year.

Tens of thousands of demonstrators have engaged in near daily protests since January with hundreds killed and thousands more wounded.

Yemen has all but been removed from the international tourist trail, with the British Foreign & Commonwealth Office (FCO) advising “against all travel” to the country.

“We strongly urge British nationals to leave now by commercial means,” added a statement from the government body.

“If you do not leave the country now while some commercial carriers are still flying it is extremely unlikely that the British government will be able to evacuate you or provide consular assistance.”