Russia's Federal Anti-monopoly Service (FAS) has opened an investigation into hotel reservation website Booking.com, the regulator has announced.
The FAS said that the company has asked hotels and hostels to offer the same prices on rival reservation websites as on Booking.com.
Booking.com did not immediately respond to a request for comment.
Get a FREE Digital Subscription!Enjoy full access to Hospitality Ireland, our weekly email news digest, all website and app content, and every digital issue.
If found to be in breach of Russian anti-monopoly laws, the company could face a fine of between 1% and 15% of its revenue generated in Russia.
The Russian investigation follows a case against the company in the European Union, where last month it committed to bring its practices in line with EU consumer law.