DUBAI, Feb 21 (Reuters) -

The commander of the overseas arm of Iran's Revolutionary Guards threatened Saudi Arabia with revenge over an attack in southeastern Iran last week that killed 27 Guards members, the semi-official Tasnim news agency reported on Thursday.

"Saudi Arabia is building its regional influence with money only. This is a false influence and a failure...We will take revenge for our martyrs...(and) it might be anywhere around the world," Qasem Soleimani said, according to Tasnim.

The Islamic Republic has accused arch regional rivals Saudi Arabia and the United Arab Emirates of backing militants who carry out attacks on security forces in Iran. Saudi Arabia and the UAE have denied any connection with the attacks.