Nigeria, Oct. 22 -- The Islamic Revolutionary Guard Corps (IRGC) has threatened "to invade" any country in the Middle East that attacks Iran as tensions in the region rise.

The IRGC spokesperson, Hossein Mohebi, on Wednesday, said Iran's security doctrine has become "offensive and asymmetrical."

Al Jazeera reported that Mr Mohebi said Iran's defence doctrine was previously defensive but shifted to 'offensive and asymmetrical' because of its realities.

"We announced that if a country attacked us, we would respond to it," he said.

"Now, we say if a country attacks us, we will respond to it, and we will invade. Our doctrine will no longer be only offensive and will become asymmetrical. We will attack the enemy in such a way that it will ...