The largest unexploded World War Two bomb ever found in Poland has detonated during the defusing process, a Polish Navy spokesman said. The chance the bomb - at the bottom of a Baltic Sea shipping canal - would detonate had been put at 50-50 and all the divers were unharmed.
About 750 residents had been evacuated near the port city of Swinoujscie.
The RAF dropped the Tallboy or "earthquake" bomb in a raid in 1945 which sank the German cruiser Lützow.
Swinoujscie was part of Germany and called Swinemünde at the time of the bombardment.
The shock of the latest detonation was reportedly felt in parts of the city and a video shows the blast throwing up a large column of water into the air.
The bomb was 6m (19ft) long and weighed 5.4 tonnes, nearly half of which was its explosives.
The bomb was embedded at a depth of 12m and only its nose was sticking out.

Naval forces used a remote-controlled device to try to "deflagrate" the bomb - a technique that if successful burns the explosive charge without causing a detonation, the BBC's Adam Easton reports from Warsaw.
Latest Stories
-
Nkyinkyim Band pushes for national union, plans software to streamline bank booking
1 minute -
Kumasi Airport City to revolutionise skyline in 2 years, foster economic growth
15 minutes -
25 hectares of degraded lands in Ghana, Kenya to be restored under EMBRACE project
22 minutes -
Police launch investigation into social media threats and obstruction of duty
33 minutes -
ECG Ashanti Substation receives support to resolve high-voltage breaker mechanism fault at Supply Point Ridge
34 minutes -
Dikan Center launches ‘HerPress’ fellowship to empower Ghana’s female journalists
39 minutes -
Former US Tennis Association President to lead Tennis Clinic in Ghana
52 minutes -
15 media professionals begin journey in groundbreaking Ghana-China fellowship
53 minutes -
Liverpool sign Wirtz for club record fee
58 minutes -
No one should be arrested without evidence – Justice Ackaah-Boafo
1 hour -
Mike Eghan’s family informs former President Kufuor of his passing
1 hour -
Top 15 reasons to hit the Ecobank-JoyNews Habitat Fair at Achimota Mall today
1 hour -
Judges must be paid well to make legal profession attractive – Supreme Court nominee
1 hour -
Unilever Ghana unveils new chapter for Pepsodent Charcoal with “Crafting Smiles” experience
2 hours -
18,000 babies are born annually with sickle cell disease in Ghana – Dr Kwarley Asare
2 hours