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ATHENS, Greece (AP) — Arsonists attacked the homes of five prominent Greek journalists Friday, causing limited damage and no injuries but triggering a heated exchange between the conservative-led government and the leftist main opposition party.

Two small anarchist groups later claimed responsibility for the attacks. In a proclamation posted on a left-wing website, the groups accused the journalists of serving the interests of Greece's establishment. The groups also expressed solidarity for people arrested during police crackdowns on anarchist squads in Athens.

The predawn attacks occurred in several Athens neighborhoods. The arsonists exploded small gas canisters outside apartment blocks where journalists live, including the home of Antonis Skyllakos, director of the state-run Athens News Agency.

The government accused the main opposition Syriza party of failing to condemn the attacks, along with violent acts claimed by far-left and anarchist militant groups. The leftist party angrily rejected the allegation.

Anarchist groups frequently target symbols of wealth and state authority, using makeshift gas-canister bombs.