Yemeni police have detained a Saudi man suspected to be the main financier of al-Qaeda operations in Yemen and neighbouring Saudi Arabia, the defence ministry said on Sunday.
It said in a statement posted on its website that the suspect, identified as Hassan Hussein bin Alwan, was "the financier of the operations carried out by members of al-Qaeda in Yemen and Saudi Arabia".
It further described him as "one of the most dangerous al-Qaeda terrorists". The statement gave no further details on the suspect or location of the arrest.
A security source told DPA that the arrest took place in the desert province of Marib, some 190 km northwest of the capital Sanaa on Friday.
In January, Yemen launched a countrywide manhunt for Yemeni and Saudi fugitive al-Qaeda members after the group announced the merger of its branches in Yemen and Saudi Araiba into the 'al-Qaeda in the Arabian Peninsula'.
The new group, headed by Nasser al-Wahishi, former secretary of Osama bin Laden, is believed to have some 1,200 militants from both countries hiding in four desert provinces in north and east of Yemen.
Yemen, a close US-ally in the "fight against terrorism", was itself the scene of deadly attacks in recent months.