MOSCOW. April 16 (Interfax) - British Prime Minister Gordon Brown has not yet received an invitation to attend the inauguration of President-elect Dmitry Medvedev.

Brown has not been invited yet, British Ambassador Anthony Brenton said in Moscow on Wednesday.

As far as we know, the inauguration will not require the attendance of country leaders, except those of CIS member-countries, he said.

But if we receive such an invitation, the prime minister will carefully consider whether to travel to Russia for the inauguration, the British diplomat said.

Over the past years, British-Russian relations have not been particularly good, but there are positive things in bilateral economic relations, he said. Regarding the situation surrounding TNK-BP, both the British and Russian authorities are being very careful to distinguish political from economic issues, he said.

We closely followed the events around TNK-BP, Brenton said, adding that according to company executives, the current problems are the result of internal factors, rather than the fact that part of the company is British.