Russia's Gazprom said on Friday it aims to book capacity in the Bulgarian gas transmission system for transit of natural gas from Turkey to Serbia. "Gazprom plans to take part in a capacity booking procedure, but the decision will be made taking into account the booking conditions, which will be known upon the announcement of the start of Phase 3 of the procedure," Gazprom said in a Twitter post. Bulgaria's government has received an official notification from Gazprom for participation in the market test, which practically means that the section of the TurkStream pipeline for transit of Russian natural gas from Turkey to Europe will cross Bulgaria, Sofia-based media quoted Bulgarian energy minister Temenuzhka Petkova as saying in parliament. Earlier this month, Bulgartransgaz said it invited companies to participate in Phase 3 of a market survey on the demand for new transmission capacity from the border of Turkey to the border of Serbia. The deadline for applications is December 10, 2018.