“Once again we urge the British authorities to return to the international legal field in order to answer the main questions - what is the fate and state of health of Sergey Skripal and his daughter who disappeared in the UK more than a year ago,” the statement said on the agency’s website.

It is noted that the Ministry of Foreign Affairs of the United Kingdom has already ignored 80 diplomatic notes, as well as a request from the General Prosecutor’s Office for legal assistance.

"The Russian side is determined to establish the truth about the events in Salisbury," emphasize the Russian embassy.

In July, the Russian embassy assessed the progress of the investigation into the incident in Salisbury.