Baikonur Cosmodrome will not close after Russia's launching of Vostochny Cosmodrome, President of Kazakhstan Nursultan Nazarbayev said in an interview with the state TV channel on Sunday evening.

Vostochny Cosmodrome is under construction near the village of Uglegorsk in the Amur region of the Russian Federation. First launch from the Cosmodrome was expected in December 2015. But President of Russia Vladimir Putin officially postponed the date of the first space launch by four months - into early 2016.

Vostochny, a $3 billion construction high-profile mega-project, has been delayed by faulty construction, repeated corruption scandals and worker strikes. First launch from the Cosmodrome was expected in December 2015.

“We will continue to work together with Russia,” said Nazarbayev.

Baikonur Cosmodrome is located in Kyzylorda region, the south of Kazakhstan. The cosmodrome is leased by Russia until 2050. The deal effectively makes Baikonur city an island of the Russian Federation inside Kazakhstan.

The city today uses Kazakh mobile phone networks, both countries’ currencies, and a parallel system of laws regulated by more than 50 bilateral treaties. The city mayor is appointed by Russian President Vladimir Putin, but subject to approval by Kazakhstan President Nursultan Nazarbayev.