More than 40 per cent of the tickets across 120 sport sessions at the Minsk 2019 European Games have been sold, organisers have said.
Maksim Koshkalda, the head of marketing and advertising for the event, claimed sales were "going well".
Fans from 28 countries are said to have bought tickets so far, with the most popular sports athletics, beach soccer, gymnastics and karate.
Koshkalda said more than half of the tickets for these events have been sold.
More than half of the tickets for the Opening and Closing Ceremonies are also said to have been bought.
Minsk, the capital of Belarus, will host the second edition of the European Games between June 21 and 30.
Ticket sales have been among the chief concerns but Koshkalda has now begun talking about possibly increasing the capacity of venues.
"The ticket programme has been designed for a total number of 384,000 seats," he said.
"With the increased demand for some competitions at Minsk Arena and Chizhovka Arena, their seating capacity can be expanded to 535,000."
More than 4,000 athletes are due to compete at Minsk 2019, which follows the inaugural edition in Baku in Azerbaijan in 2015.
Competitions in eight sports will be qualifiers for the Tokyo 2020 Summer Olympics.