India Saturday said it was in touch with Iran to secure release of the Indians on board a British-flagged oil tanker seized by the Gulf country in the Strait of Hormuz. We are ascertaining further details on the incident. Our Mission is in touch with the Government of Iran to secure the early release and repatriation of Indian nationals, External Affairs Ministry Spokesperson Raveesh Kumar said in response to a question on the detention of Indian crew members along with the oil tanker Stena Impero by Iranian authorities. According to a media report, 18 Indian nationals are among the 23 crew members of the British-flagged oil tanker seized by Iran amid fresh escalation of tensions in the Gulf region. The Stena Impero was seized on Friday by the Iranian Revolutionary Guard. Irans seizure of a British-flagged oil tanker was allegedly due to a collision with an Iranian fishing boat, Irans official news agency IRNA said. There are 18 Indian and five crew members from Russia, Philipines, Latvia and other countries on board of Stena Impero. The captain is Indian, but the tanker is UK-flagged, the news agency quoted Allahmorad Afifipour, director general of Ports and Maritime Affairs of Hormuzgan province, as saying. Stena Bulk, a Swedish company which owns the vessel, said they have been unable to contact the ship, which was seized in the Strait of Hormuz, a key waterway in the region. Soon after the vessel was approached by unidentified small naval craft and a helicopter during her transit of the Strait of Hormuz in international waters.the vessel suddenly deviated from her passage to Jubail and headed north towards Iran, the company said in statement. The vessel was in full compliance with all navigation and international regulations, it said. Erik Hanell, President and Chief Executive, Stena Bulk, said: There are 23 seafarers onboard of Indian, Russian, Latvian and Filipino nationality. We are in close contact with both the UK and Swedish government authorities to resolve this situation and we are liaising closely with our seafarers families, Hanell said. In early July, British marines and Gibraltar police seized an Iranian tanker off the Southern coast of the Iberian Peninsula. Gibraltar claimed that the ship was transporting crude oil to Syria in violation of the EU sanctions placed on Damascus, escalating tensions in the Gulf.