Three people were killed and at least 15 others injured in an explosion near a cafe on Moscow's Kudrinskaya Square on Saturday, the Interior Ministry said.
In a statement on the Russian social media platform Max, the ministry said the blast occurred at about 8.10 pm (1710GMT) near Building 1 on Kudrinskaya Square.
Police and emergency services were deployed to the scene, while authorities said the cause of the explosion was under investigation.
Russian state broadcaster Vesti reported that preliminary information indicated the blast may have been caused by a gas leak.
Meanwhile, the Telegram monitoring channel ASTRA, citing witnesses, reported that a birthday celebration for a general was taking place at the restaurant where the explosion occurred.
The report could not be independently verified, and authorities have not confirmed the claim.
