Ukrainian authorities said on Saturday they are investigating a rocket-propelled grenade (RPG) attack on a building that houses the Kyiv office of television channel 112 Ukraine. Kyiv police said there were no injuries but classified the attack on July 13 as a terrorist act.

Police said in a statement they arrived at the scene in Kyiv's Shevchenkivsky district after neighbors reported hearing an explosion around 3.40 a.m. local time. A spokesman for Ukraine's Interior Ministry told RFE/RL that police had no suspects but were actively investigating the case. Police said they discovered a spent tube used to fire an RPG and cordoned off the area. Photographs published by police showed damage to the office building's exterior.

Channel 112 issued a statement just a day before the attack, calling on "law enforcement agencies to protect us from the arbitrariness of national radicals, who by intimidation and threats try to influence the editorial policy of the channel [and] force us to abandon world-wide broadcasting standards in favor of certain political interests."

Immediately after the attack, Channel 112 CEO Yehor Benkendorf appealed to President Volodymyr Zelensky to condemn the incident. "You must state clearly and decisively that no one should use force against media in Ukraine," Benkendorf said.

Channel 112 has come under pressure from nationalist groups since it was purchased last year by Taras Kozak, who is a close ally of controversial Ukrainian politician Viktor Medvedchuk. Kozak also owns the NewsOne and ZIK channels. Since Kozak's purchase of Channel 112, Medvedchuk has appeared regularly on the channel, leading observers to believe that he is its ultimate controller. Medvedchuk's spokesman has denied this to RFE/RL.

Channel 112 received a warning earlier this week from prosecutors over its plans to broadcast a documentary called Revealing Ukraine by U.S. filmmaker Oliver Stone, which includes an interview with Russian President Vladimir Putin. In the documentary, Putin and Medvedchuk discuss the situation in Ukraine. The channel said on Sunday it has cancelled plans to show the film to avoid possible legal consequences.

Political analysts explain the rising tension around the "Medvedchuk" channels with his attempt to consolidate voters for his pro-Russian Opposition Platform - For Life party ahead of the upcoming parliamentary elections on July 21.