MOSCOW, Russia (CNN) -- At least two police officers in Russia's restive region of Chechnya were killed Friday when two bombs went off in the capital, Grozny, the Russian Interior Ministry said.
The bombs went off around 2 p.m. (6 a.m. ET), the ministry said. An investigation into the explosions has been launched.
Reports on Russian state television said preliminary information suggested four people were killed in the blasts and one person was wounded.
CNN's Mike Sefanov contributed to this report.