India has allowed an Iranian warship to dock as a humanitarian gesture, Foreign Minister Subrahmanyam Jaishankar said on Saturday, after the U.S. ​sank another Iranian navy vessel off neighbouring Sri Lanka, Reuters reports.

The Lavan docked ‌at India's southern port of Kochi on Wednesday, the same day the U.S. submarine struck Iranian navy frigate Dena, after an urgent request from Tehran, an Indian government source told ​Reuters.

The Lavan - an amphibious landing vessel, according to the U.S. ​Naval Institute's online news site - and two other ships "were coming in for a ​fleet review and then they got, in a way, caught on the wrong side of the events," Jaishankar told the annual Raisina Dialogue event.

"I think we really approached it from ​the point of view of humanity, of other than whatever the legal ​issues were," he said. "I think we did the right thing."

The mentioned frigate, carrying about 130 sailors, was attacked by a US Navy submarine on March 4 and sank off the coast of Sri Lanka. The Sri Lankan Navy rescued 32 people, all Iranian citizens, who were hospitalized. Eighty-seven bodies were recovered from the water. The remaining crew members are listed as missing.

India received the docking request for the Lavan on February 28, the day the Iran war started, an   Indian government source ​told ​​Reuters, adding that the ⁠request "was urgent as the vessel had developed technical issues". Its 183 crew members have been accommodated at naval facilities in ​Kochi.