Iran Guards claim US, Saudi 'involved' in Tehran attacks

Iran's Revolutionary Guards say Saudi Arabia and the US were behind twin attacks in Tehran today that killed at least 12 people and injured 43. 

"This terrorist attack happened only a week after the meeting between the US president (Donald Trump) and the (Saudi) backward leaders who support terrorists. The fact that Islamic State has claimed responsibility proves that they were involved in the brutal attack," said the statement, published by Iranian media.

The attacks were the first claimed by the hardline Sunni Muslim militant group in the tightly controlled Shi'ite Muslim Iran.