Iran could shut the Strait of Hormuz as a way of hitting back against its enemies, a senior lawmaker said, though a second member of parliament said this would only happen if Tehran’s vital interests were endangered, Reuters reports.

“Iran has numerous options to respond to its enemies and uses such options based on what the situation is,” the semi-official Mehr news agency quoted Behnam Saeedi, a member of the parliament’s National Security Committee presidium as saying.

“Closing the Strait of Hormuz is one of the potential options for Iran,” he said. Mehr later quoted another lawmaker, Ali Yazdikhah, as saying Iran would continue to allow free shipping in the Strait and in the Gulf so long as its vital national interests were not at risk.

“If the United States officially and operationally enters the war in support of the Zionists (Israel), it is the legitimate right of Iran in view of pressuring the US and Western countries to disrupt their oil trade’s ease of transit,” Yazdikhah said.