Backed by U.S. intelligence, Yemeni forces struck a series of suspected al-Qaida hideouts Thursday, killing more than 30 militants in its stepped-up campaign against the terror network, the government said.

Yemen's Supreme Security Committee said airstrikes in the eastern Shabwa province targeted an al-Qaida leadership meeting that was organizing attacks. It said top al-Qaida officials were at the meeting, though it was unclear whether they were harmed.

The Pentagon recently confirmed it is has poured nearly $70 million in military aid to Yemen this year, a massive financial infusion aimed at eliminating the expanding al-Qaida safe havens in that country.

A secretive U.S. air strike last week was part of the fast-growing campaign to better equip and fund Yemeni forces. The increased spending compares with no spending in 2008.

Yemen's deputy defense minister, Rashad al-Alaimy, confirmed that U.S. and Saudi assistance had been key to the latest strikes against al-Qaida.

"Yemeni security forces carried out the operations using intelligence aid from Saudi Arabia and the United States of America in our fight against terrorism," he told Parliament on Wednesday.

Much like the effort with Pakistan's Frontier Corps, the U.S. military has boosted its counterterrorism training for Yemeni forces, and is providing more intelligence, which probably includes surveillance by unmanned drones, according to U.S. officials and analysts.

The Yemeni Interior Ministry said 25 suspected al-Qaida members were arrested Wednesday in San'a and it has set up checkpoints in the capital to control traffic flow as part of a campaign to clamp down on terrorism.

On Dec. 17, warplanes and security forces on the ground attacked what authorities said was an al-Qaida training camp in the area of Mahsad in the southern province of Abyan. Saleh el-Shamsy, a provincial security official, said at least 30 suspected militants were killed. Witnesses, however, put the number killed at over 60 in the heaviest strike and said the dead were mostly civilians.

The United States has repeatedly called on Yemen to take stronger action against al-Qaida, whose fighters have taken advantage of the central government's weakness and increasingly found refuge here in the past year. Worries over the growing presence are compounded by fears that Yemen could collapse into turmoil from its multiple conflicts and increasing poverty and become another Afghanistan, giving the militants even freer reign.

The country was scene of one of al-Qaida's most dramatic pre-9/11 attacks, the 2000 suicide bombing of the destroyer USS Cole off the Aden coast that killed 17 American sailors. The government allied itself with Washington in the war on terror, but U.S officials have complained that it often strikes deals with militants.