An explosive device went off outside Greece's labour ministry in central Athens early on Saturday but caused no injuries, Greek police said.
A Greek newspaper received a phone call from an unknown caller that a bomb had been planted at the ministry and had informed the police, who cordoned off the area before the explosion, which caused damage to the building and broken windows, police said.
The caller said a previously unknown guerrilla group was behind the attack, a police official said on condition of anonymity.
Police have launched an investigation into the incident.
Greece has a history of political violence. Small bomb and arson attacks are frequent, and most of them do not cause serious damage.
However, the government said it was worried by the incident.
"The attack is very serious and has to do with a serious crime," government spokesman Pavlos Marinakis told Open TV broadcaster on Saturday.
After a storm-related delay, US President Donald Trump took the stage on the National Mall on Saturday to deliver a campaign-style speech to mark the country's 250th anniversary.
Russia's second city of St. Petersburg and the surrounding Leningrad region came under a large Ukrainian drone attack overnight on Saturday, with a local port and oil infrastructure struck, Russian and Ukrainian authorities said.
Thousands protested against Germany's far-right AfD and blocked roads to its annual conference in the eastern city of Erfurt on Saturday, where the party re-elected the two leaders who have overseen its rise as a national force.
US President Donald Trump called on Americans to protect the freedoms the nation's founders envisioned 250 years ago against what he has portrayed as the "communist" threat posed by progressive Democrats, speaking on the eve of Independence Day at Mount Rushmore.
Ukraine still controls the strategically important eastern city of Kostiantynivka, President Volodymyr Zelenskyy and the General Staff said on Saturday, rejecting Russian claims that it has been captured.
After weeks of protests, fraud accusations and review of contested ballots in a razor-thin race, conservative Keiko Fujimori was officially declared the winner of Peru's presidential race by the country's electoral office on Friday.
Rescuers cleared the rubble in the Ukrainian capital Kyiv on Friday in a search for survivors, as flags were lowered to half mast to mark a day of mourning, a day after a Russian missile and drone attack killed at least 30 people.
A Ukrainian woman is the main suspect in a bomb attack that targeted a wealthy businessman in Monaco, officials said on Friday, adding that the suspect had fled to Germany and had likely not acted alone.
Welcome to Pinoy Bulletin, your go-to source for staying informed about important announcements, exciting group activities, community events, and job opportunities!
Trump appears on National Mall for July 4 speech after storm-related delay
St. Petersburg region port, oil terminal hit in Ukrainian drone attack
Thousands protest in Germany as far-right AfD sets sights on power
Trump extols America, rails at communism in US 250th celebration
Zelenskyy denies Russian capture of key eastern city Kostiantynivka
Keiko Fujimori declared winner of Peru presidential race
Ukrainian rescuers clear rubble as Kyiv mourns 30 killed in Russian attack
Monaco blast suspect is a Ukrainian woman who fled to Germany
