India's foreign minister Subrahmanyam Jaishankar said he "was made aware of exposure to possible Covid positive cases".
Two members of the Indian delegation attending the Group of Seven (G7) summit in London have tested positive for COVID-19, Sky News reported on Wednesday.
India, now undergoing the world's worst surge in Covid-19 cases, is attending the G7 as a guest and had been due to take part in meetings on Tuesday evening and throughout Wednesday.
During the visit to the United Kingdom the Indian delegation had other meetings but Public Health England has assessed that social distancing and mask-wearing meant there was no need for any further action.
He met Home Secretary Priti Patel in person on Tuesday, but will now carry out all meetings virtually.
Coronavirus measures in place at the foreign ministers' meeting include regular testing and cleaning - one insider joked there was "hand sanitiser running down the walls" of Lancaster House - and clear plastic screens between ministers at the summit table.
"The addition of our friends from Australia, India, the Republic of Korea and South Africa, as well as the chair of ASEAN (Association of Southeast Asian Nations) reflects the growing significance of the Indo Pacific region for the G7", said Raab.
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Supt Sayyed said they had also contacted the parents and other family members of the deceased overseas to get details from them. The officer said that they had been alerted to the apparent murder, and that forensic experts had cordoned off the crime scene.
India is experiencing a vast outbreak of COVID-19, with 382,315 new confirmed cases and 3,780 reported deaths in the last 24 hours, in what is widely believed to be an undercount. "That will be the case with the G7 meeting today as well".
The Indian High Commission in London did not respond to requests for comment.
Jaishankar also held discussions with South African Foreign Minister Dr Naledi Pandor, with a focus on working together on fighting the COVID pandemic, economic recovery and Commonwealth issues.
Blinken has already received two coronavirus vaccine doses.
"The meeting had been enabled by a strict set of COVID protocols, including daily testing of all delegates", the British official said.
The foreign ministers of Britain, Canada, France, Germany, Italy, Japan and the United States are wrapping up three days of talks in London ahead of a G7 leaders' summit next month in Cornwall in southern England.
The scale of the delegations had also been reduced to minimise risk, with room headcounts indoors also cut down significantly.