Belarus President Alexander Lukashenko has left for the Russian Federation on a working visit. The aircraft with the Belarusian head of sate on board departed from Minsk National Airport. In St. Petersburg, Alexander Lukashenko and Vladimir Putin are expected to discuss a wide range of matters concerning the development of Belarusian-Russian bilateral relations while focusing on trade and economic cooperation, the problems that exist in these spheres as well as interaction in integration formats.