MOSCOW, September 23. /TASS/. Russian Foreign Minister Sergey Lavrov met with new British Foreign Secretary Liz Truss for the first time, Russian Foreign Ministry announced on its website Thursday, adding Lavrov noted the lack of progress in solving problems on the track to restoration of a fully-fledged political dialogue between the two countries.

"The top diplomats discussed the current state of the bilateral relations. The Russian side once again noted the lack of progress on solving problems that obstruct the restoration of a fully-fledged political dialogue, as well as London’s persistent unwillingness to build international ties based on equality and mutual respect of interests," the statement says.

Lavrov particularly emphasized London’s persistent unwillingness to abolish provocative activities near Russian borders that pose a real threat to the regional security. He also called on London to embark on responsible cooperation and concrete action for creation of a positive agenda in bilateral cooperation.

The ministers exchanged their opinions on a number of international and regional problems.

The meeting happened on the sidelines of the UN General Assembly session amid new UK’s accusations against Russia. On Tuesday, British authorities announced that a third man allegedly involved in the Skripal case was identified - one Sergey Fedotov, a "GRU agent" and an accomplice of two other Russians named earlier.

Liz Truss succeeded Dominic Raab as the Foreign Secretary on September 15.