TEHRAN (AFP/Reuters) - A senior Iranian military official told Gulf states on Thursday not to squander money on US missiles, boasting that Iran can render them useless, the state news agency IRNA reported. Tehran had on Wednesday slammed plans by the US to beef up defences in the Gulf against potential Iranian missile attacks, with the Islamic republic insisting it posed no threat to its neighbours. The Iranian general accused the United States of launching a psychological war in the Gulf region by presenting Tehran as a threat to Gulf Arab states to convince them they needed US protection. Installing anti-missile Patriot missiles is a new trick to empty the pockets of rich Persian Gulf countries, said Major-General Hassan Firuzabadi, the joint chief of staff of Irans armed forces. Patriot missiles can be rendered ineffective by simple tactics, and I advise the regional countries, especially Islamic states, not to waste their money on these missiles which have not worked anywhere, he said. They dont want to see good and growing relations between Iran and its neighbours in the Persian Gulf and thus started a psychological war, Maj-Gen Hassan Firuzabadi was quoted as saying on semi-official news agency ILNA. Irans top military official also played down the threat to the Islamic republic from Patriot missiles. It is not new for us ... we were informed when they were installed, including about their exact locations ... Patriot missile could be easily deactivated by using simple tactics. US President Barack Obamas Administration is reportedly placing ships with missile-targeting capabilities off Irans coast, and anti-missile systems in at least four Gulf states - Bahrain, Kuwait, Qatar and the United Arab Emirates. US ally Bahrain acknowledged on Wednesday that Gulf military defences were being upgraded but urged Iran not to see them as plans for attack. The moves come as Iran remains locked in a standoff with the West over its nuclear programme, which many world powers believe is masking a weapons drive. Iran has vehemently denied this. An Iranian Revolutionary Guards official also said on Wednesday that Iran had developed anti-armour weapons which can combat US Apache helicopters and armoured tanks. The enemy should not think their Apache helicopters can have the same power that they have in Iraq and Afghanistan in Iran, Naser Arab-beigi, who heads the self-sufficiency organization of the Revolutionary Guards, told Fars news agency.