Official sources have said that two Saudi nationals named on the Ministry of Interior's list of 85 wanted terrorists were involved in last Saturday's oil pipeline attack in the Yemeni region of Marib. A Yemeni government source said that Saeed Al-Shehri - Al-Qaeda's “second man” in the Arabian Peninsula - and the organization's field commander Othman Al-Ghamdi were both involved, making it their first operation since joining up with the group in Yemen. The source added that three Yemenis - Qasim Al-Raimi, Saeed Ali Bin Jameel and Nasser Bin Douha - also took part in the bombing. Al-Raimi is the organization's military commander while Bin Jameel is believed to be Al-Qaeda's head in the region of Marib. Sources in the Yemeni government added that a number of wanted Saudis from the list of 85 had departed Marib for the region of Shabwa following the pipeline attack. Saudi Gazette reported on Monday sources as saying that a “not inconsiderable” number of Saudi nationals whose names are on the Ministry of Interior's February 2009 list of 85 wanted had been recently observed in Marib, which lies to the northeast of the capital Sana'a in the northwest of Yemen. Governor of Marib Naji Al-Zayedi said that the Yemeni leader of Al-Qaeda in the Arabian Peninsula, Nasser Al-Wuhaishi, had been spotted in the region along with Saeed Al-Shehri and Qasim Al-Raimi. The same day, the Yemeni Ministry of Defense's online newspaper said that security forces had destroyed an Al-Qaeda hideout in Marib and foiled a “plot on the verge of implementation to target economic and government installations and army camps”.