Qatar restored full diplomatic relations with Iran early Thursday, disregarding the demands of Arab nations now locked in a regional dispute with the energy-rich country that it lessen its ties to Tehran, Daily Sabah reported.

In announcing its decision, Qatar did not mention the diplomatic crisis roiling Gulf Arab nations since June, when Qatar found its land, sea and air routes cut off by its neighbors.

However, the move comes just days after Saudi Arabia began promoting a Qatari royal family member whose branch of the family was ousted in a palace coup in 1972.

"Qatar has shown it is going to go in a different direction," said Kristian Coates Ulrichsen, a research fellow at the James A. Baker III Institute for Public Policy at Rice University who lives in Seattle. "It could very well be calculated toward reinforcing the point that Qatar will not bow to this regional pressure placed upon it."

Qatar's Foreign Ministry announced early Thursday that the country's ambassador would return to Tehran. Qatar pulled its ambassador in early 2016 after Saudi Arabia's execution of a prominent Shiite cleric sparked attacks on two Saudi diplomatic posts in Iran, a move to show solidarity with the kingdom.