India's entire delegation to a G7 foreign ministers' meeting in London is self isolating after two members tested positive for Covid-19, said a British government official.

Reuters reports that the official said this was in line with pre-established protocols, which included daily testing for all attendees.

"Two delegates tested positive so the entire delegation is now self isolating," he said. "The meeting had been enabled by a strict set of Covid protocols, including daily testing of all delegates."

Indian Foreign Minister Subrahmanyam Jaishankar did not test positive for the virus, Sky News reporter Joe Pike said on Twitter. The delegation will be attempting to meet virtually, Pike added.