Russian President Dmitry Medvedev is expected to sign strategic and long-term intergovernmental agreements during an official visit to Ankara, the Russian Deputy Prime Minister said on Tuesday.

Igor Sechin said the agreements are still being worked on.

"Negotiations on some documents continue at an expert level," Sechin said. "Of course, the leaders of two countries get the final say. In particular, we are talking about cooperation in the gas, electricity, nuclear energy and oil transportation sectors, and the introduction of a visa-free regime."

The Russian Prime Minister is due to arrive in Ankara on Tuesday evening. A number of bilateral agreements are expected to be signed during the visit along with a joint statement on the formation of a high level cooperation council, to be chaired by Medvedev and Turkish Prime Minister Tayyip Erdogan.

Sechin said one of Russia's priorities is the construction of the $1.5-billion Samsun-Ceyhan oil pipeline, being built by the Turkish holding Calik Energy and Italy's ENI. The pipline will extend 700 kilometers (435 miles) through Turkey from the Black Sea port of Samsun to the port of Ceyhan on the Mediterranean and take a capacity of 60-70 million tons of oil a year (1.2-1.4 million bbl/d).

"All participants of the project are interested in its implementation," Sechin said.

The sides will also discuss the construction of Turkey's first nuclear power station, although details of a document on this issue, due to be signed tomorrow, have not yet been disclosed.

ANKARA, May 11 (RIA Novosti)