Some 600 people were evacuated from their homes in Frankfurt as bomb disposal experts could remove a World War II-era bomb.
According to media reports, the bomb was defused underwater on Sunday, leading to a loud detonation and a big water fountain.
The 250 kg bomb was detected by divers with the city's fire service during a routine training exercise in Frankfurt's River Main.
Even more than 70 years after World War II, bombs and other munitions are still detected in several parts of Germany.
Hong Kong court finds tycoon Jimmy Lai guilty in landmark security trial
Hong Kong's High Court on Monday found pro-democracy campaigner Jimmy Lai guilty of conspiracy to collude with foreign forces and to publish seditious material under a China-imposed national security law that could see him jailed for life.
At least 37 people killed in flash floods in Morocco
At least 37 people were killed in flash floods triggered by torrential rains on Sunday in Morocco's Atlantic coastal province of Safi, 330 km south of the capital Rabat, Morocco's state-run 2M TV reported on Monday.
School bus accident in Colombia kills 17, injures 20
Seventeen people were killed and 20 injured after a bus carrying school children fell off a cliff in a rural area in northern Colombia, the local governor said on Sunday night.
Australia plans tougher gun laws after father and son kill 15 at Bondi Beach
Australia signalled plans for tougher gun laws on Monday as the country began mourning victims of its worst mass shooting in almost 30 years, in which a father and son duo killed 15 people at Sydney's Bondi Beach.
Police to release man detained over Brown University mass shooting
The man held as a "person of interest" in the Brown University shooting that left two students dead and nine injured will be released from custody, authorities said on Sunday night.
