Azerbaijan's defence ministry denied the claim that its helicopters and tanks had been hit.
The bombs dropped by the United States on the cities of Hiroshima and Nagasaki 75 years ago, in the final days of World War II, incinerated some 200,000 people, most of them civilians.
Israel bombed Gaza on Wednesday morning after rocket fire from the territory. Clutching Palestinian flags and wearing blue face masks for protection against coronavirus, demonstrators rallied in the West Bank cities of Nablus and Hebron and in Gaza.
Forty-two people, including four security forces members, were wounded, he said, adding that several armed attackers who tried to enter the building after the assault were also killed by security forces.
Bild newspaper reported that the device was a home-made bomb capable of causing serious injuries, adding that it had been discovered by a cleaner in a cardboard box hidden in one of the train's compartments.
The bomb was found by a fisherman on Elizabeth Reef near Lord Howe Island, about 550 kilometres (340 miles) off New South Wales state. He photographed his discovery and reported it to authorities.
A sticky bomb attached to an armored vehicle in northern Kabul killed two, and wounded at least two others, according to Ferdaws Faramarz, a spokesman for the Kabul police chief. No further details were immediately available.
The British bomb that weighed 500-kilogramme was found on a construction site on Thursday, said the emergency services.
Officials said, "The terrorists have carried out a terrorist attack in Kabul city. Unfortunately, eight of our countrymen were killed and more than 15 others were wounded."
The Taliban claimed responsibility for the blast in the northern province of Balkh, saying on Twitter they had attacked the commandos. The defence ministry said two members of the commando force were killed and six wounded, while the rest of the casualties were civilians.