Hundreds of Al Qaeda militants are planning terror attacks from Yemen, the country's foreign minister said Tuesday.

Abu Bakr al-Qirbi appealed for more help from the international community to help train and equip counter-terrorist forces.

His plea came after an Al Qaeda group based in Yemen claimed responsibility for the failed Christmas Day airliner bomb plot.

Umar Farouk Abdulmutallab, alleged to be behind the attempt to blow up an American-bound aircraft, spent time in Yemen with Al Qaeda and was in the country only days before the failed attack.

Al-Qirbi said: "Of course there are a number of Al Qaeda operatives in Yemen and some of their leaders. We realize this danger.

"They may actually plan attacks like the one we have just had in Detroit. There are maybe hundreds of them — 200, 300."

Al-Qirbi said it was the "responsibility" of countries with strong intelligence capabilities to warn states such as Yemen about the movements of terror suspects.

The United States, Britain and the European Union could do a lot to improve Yemen’s response to militants on its own soil, he added.

"We have to work in a very joint fashion in partnership to combat terrorism," he said. "If we do, the problem will be brought under control.

"There is support, but I must say it is inadequate. We need more training, we have to expand our counter-terrorism units and provide them with equipment and transportation like helicopters."

Abdulmutallab is said to have told U.S. agents that there were more people "just like him" ready to carry out attacks.

An Al Qaeda group based in Yemen claimed responsibility on Monday for the failed attempt to bring down Northwest Airlines Flight 253 over Detroit as President Obama pledged to hunt down the plotters.

Photographs apparently showing the underpants worn by alleged bomber Umar Farouk Abdulmutallab and filled with explosives were broadcast by ABC News.

The American government pictures show the singed underwear with a six-inch packet of a high explosive called PETN sewn into the crotch, the network reported.

Abdulmutallab was reported to be carrying about three ounces of PETN, more than one-and-a-half times the amount carried by Richard Reid, the "shoe bomber," in 2001 and enough to blow a hole in the side of an aircraft.

Abdulmutallab’s former tutors at University College London, where he was a student between 2005 and 2008, described him as "well-mannered, quietly spoken, polite and able" and said that he never gave any cause for concern. He was president of the institution’s Islamic society between 2006 and 2007.

Nigerian-born Abdulmutallab is being held at a federal prison in Michigan on a charge of trying to destroy an aircraft.

He apparently wrote of his loneliness and struggle between liberalism and Islamic extremism in a series of postings on Facebook and in Islamic chatrooms, the Washington Post reported.