Attackers on a motorcycle threw a hand grenade at the Russian consulate in Athens early on Friday, causing no injuries and slight damage, police said.
There was no immediate claim of responsibility for the early morning attack on the consulate in the Athens suburb of Chalandri. Police had cordoned off the area.
The device exploded beneath a guard booth in the compound of the consulate but was thought to be low-density explosive.
"The material damage was small and there were no injuries," a police spokesman told Reuters.
Greece's Ministry of Foreign Affairs said it "unreservedly condemned" the attack.
"Our traditional and centuries-old ties of friendship and cooperation with Russia are not going to be affected by such unlawful and utterly condemnable acts," it said in a statement.
Small-scale attacks on businesses, police, politicians and embassies are frequent in Greece, which has a long history of political violence.
A burnt-out motorcycle found shortly after the incident in the central Athens district of Exarchia was being examined as the possible getaway vehicle of the attackers.
In 2016, a security guard was wounded in a similar incident at the French embassy in central Athens.
"It would be very early to share further evidence. The anti-terrorism unit is now handling the case. We had similar attacks in the past, one particular attack was very similar," the official said, referring to the attack on the French embassy.
A Message from The Moscow Times:
Dear readers,
We are facing unprecedented challenges. Russia's Prosecutor General's Office has designated The Moscow Times as an "undesirable" organization, criminalizing our work and putting our staff at risk of prosecution. This follows our earlier unjust labeling as a "foreign agent."
These actions are direct attempts to silence independent journalism in Russia. The authorities claim our work "discredits the decisions of the Russian leadership." We see things differently: we strive to provide accurate, unbiased reporting on Russia.
We, the journalists of The Moscow Times, refuse to be silenced. But to continue our work, we need your help.
Your support, no matter how small, makes a world of difference. If you can, please support us monthly starting from just $2. It's quick to set up, and every contribution makes a significant impact.
By supporting The Moscow Times, you're defending open, independent journalism in the face of repression. Thank you for standing with us.
Remind me later.