Three tankers appearing to be managed by Oman, a French container ship and a Japanese LNG carrier, have crossed the Seaway of Hormuz since Thursday, according to shipping data.

The development reflects Iran’s policy of allowing vessels from “non-hostile” countries to sail through the Straits.

Iran closed Hormuz when the US-Israeli strikes began in late February, but later said it would allow ships not affiliated with the US or Israel to pass through.

Oil and commodity markets are anxiously looking for signs that traffic in the Straits is being restored.

Several tankers and container ships managed to escape the blockade in previous weeks, but then navigation in the region was completely paralyzed.

A container ship belonging to France’s CMA CGM passed through the Strait on Thursday, the day French President Emmanuel Macron said only diplomatic efforts, not a military operation, could open the Ormuz.

The French vessel changed its destination in the Automatic Identification System (AIS) to “Owner France” before entering Iranian territorial waters, disclosing its nationality to Iranian authorities.

Oman had mediated the talks between the US and Iran.

The ships apparently turned off their AIS transmitters during the crossing because their signal was lost on tracking radars.

Also, two very large oil tankers and an LNG carrier belonging to Oman Shipping Management left the Gulf on Thursday, according to data from the MarineTraffic and LSEG tracking services. Japanese company O.S.K. Lines said today that the LNG tanker Sohar, of which it is a co-owner, crossed the Strait.

This is the first Japanese and the first LNG tanker to leave Hormuz since the start of the war.

The Sohar, which had been in the Gulf since February 25, was empty of cargo when it crossed the Strait.

A spokesman for the company declined to specify when the crossing took place and whether negotiations preceded it.

As of this morning, about 45 ships owned or managed by Japanese companies remained stranded in the area, according to Japan’s transport ministry.

Another Mitsui LPG tanker, the Green Sanvi, left the Gulf passing through Iranian territorial waters earlier. It flew the Indian flag and its insignia read “Ship of India, Crew of India.”

The Panama-flagged Danisa, a very large gas carrier, passed through the same route, bound for China, according to the data.