This image grab taken from a video shows the British-flagged tanker Stena Impero in the Strait of Hormuz. AFP
• Iran detained the oil tanker on allegations of failing to respond to distress calls
• Its crew is made up of 18 Indians, including the captain, three Russians, a Latvian and a Filipino.
Iran said on Sunday the fate of a British-flagged tanker it is refusing to hand back after seizing it in the Gulf depends on the cooperation of its crew with an investigation.
A senior official also said the entire crew of the Stena Impero oil tanker was in good health.
"All of them are in full health, they are on the vessel and the vessel is... anchored in a safe place.
The vessel was impounded with its 23 crew members aboard at the port of Bandar Abbas after the Islamic Revolutionary Guard Corps seized it in the Strait of Hormuz on Friday.
The Guards on Saturday released video footage showing a ship with the Stena Impero's markings being surrounded by speedboats before troops in balaclavas descend down a rope from a helicopter onto the vessel.
Iran detained the oil tanker on allegations of failing to respond to distress calls and turning off its transponder after hitting a fishing boat.
Its crew is made up of 18 Indians, including the captain, three Russians, a Latvian and a Filipino.
"All of them are in full health, they are on the vessel and the vessel is... anchored in a safe place," said Allah-Morad Afifipoor, director-general of the Hormozgan province port and maritime authority.
"We are ready to meet their needs. But we have to carry out investigations with regards the vessel," he told Press TV.
"The investigation depends on the cooperation by the crew members on the vessel, and also our access to the evidence required for us to look into the matter.
"God willing, we will make every effort to gather all the information as soon as possible," he added.
Britain called the seizure a "dangerous" and summoned Iran's charge d'affaires on Saturday, urging Iran to de-escalate tensions and release the tanker.
Britain on Saturday denounced Iran's seizure of a British-flagged oil tanker in the Gulf as a "hostile act" and rejected Tehran's explanation that it seized the vessel because it had been involved in an accident.
Three Iranian vessels tried to block a BP-operated tanker passing through the Strait of Hormuz but backed off when confronted by a Royal Navy warship, the UK government said on Thursday.
“Nine crew members have been released and they will be on their way to India soon,” foreign ministry spokesman Raveesh Kumar said.
The United States and Brazil have the highest numbers of cases but India's tally is not expected to peak for several more weeks and experts predict the one million figure will be passed this month.
"THANKS TO YOU," the drones wrote in the sky next to a heart shape, then formed a silhouette of the Korean peninsula with the message: "Cheer up, Republic of Korea."
Boat crews on nearby vessels recovered the bodies of two children and have rescued 19 people from choppy waters, said Emi Frizer, a local Search and Rescue Agency official. Rescuers were searching for the seven others reported as still missing on Monday.