Shamkhani, who serves on Iran's Defense Council, issued the warning on Thursday in a post on X in response to the final communiqué of the 46th PGCC Summit held in Bahrain on Wednesday.

The communiqué reiterated the council's repeated position on the Greater Tunb, Lesser Tunb, and Abu Musa islands, expressing full support for the United Arab Emirates' claim of sovereignty over three Iranian islands.

It described the three islands as an integral part of UAE territory.

The statement also claimed that the entire Arash gas field lies within Kuwait's territorial waters and that all its natural resources belong exclusively to the Kuwaiti-Saudi Divided Submerged Zone.

Shamkhani described the matters as Iran's red lines.

"The role of neighbors is to create security, not to play with the red lines of the Iranian nation," he said.

He cautioned that the PGCC's claims were being repeated amid malicious actions by the United States and the Israeli regime.

The senior Iranian representative stressed that Tehran had shown restraint during the 12-day Israeli-American aggression in mid-June, despite support from certain states.

He warned that "Iran's power in the Persian Gulf should not be misinterpreted."

The Persian Gulf islands of Abu Musa, Greater Tunb, and Lesser Tunb have historically belonged to Iran, as confirmed by extensive historical, legal, and geographical evidence both in Iran and internationally.

However, the United Arab Emirates has repeatedly pressed claims over the islands.

The islands came under British control in 1921, but Iran restored its sovereignty over them on November 30, 1971, one day after British forces withdrew and two days before the UAE's formal establishment.

Separately, the dispute over the Arash gas field – known as al-Durra in Kuwait – originated in the 1960s after Iran and Kuwait received overlapping offshore concessions following its discovery.

The field is estimated to contain 20 trillion cubic feet of gas reserves, with a production capacity of one billion cubic feet per day.

Nearly 40% of the Arash gas field lies in Iranian waters.