Police arrived at the nightclub on the outskirts of the Bavarian town of Amberg at the weekend to discover an unusual surprise in the gents' lavatories.
An explosion at a German chemical plant on Wednesday left several people injured, some of them seriously, authorities said as they tried to determine the cause.
A school in Leverkusen was evacuated when a man threatened to blow up a neighbouring building after a domestic dispute triggered an hours-long standoff on Friday.
Police are investigating reports that workers were smoking at a building site where a gas pipe exploded in Ludwigshafen on Thursday, killing one person and destroying part of the town.
UPDATE: A massive chemical explosion injured several people and damaged buildings and homes in the town of Ritterhude, near Bremen, on Tuesday night. All 14,000 people in the town were warned to stay indoors.
The manager of Tempelhofer Feld, Berlin's biggest park, insisted on Friday there was no danger to visitors from unexploded World War II bombs, despite enforcing a ban on disturbing the earth at the former airport.
UPDATE: The death toll following an explosion in an apartment block in northern Germany on Monday morning has risen to four. Fifteen other people were also injured.
Three people, including a six-year-old girl, were found dead by firefighters on Friday in a flat in central Germany following an explosion. The blast blew windows on to the street.
UPDATE: A great clean-up operation began in Frankfurt on Monday after a tower block was reduced to rubble in a controlled explosion – the tallest building in Europe to be demolished in such a way.
A student was seriously injured and 15 others also hurt when the left-overs of a chemical experiment exploded after they were mistakenly mixed together at a German university.
Police ordered 3,000 people to leave their homes after an explosion at a gas plant in west Germany caused millions of euros worth of damage and sent tanks flying hundreds of metres into the air.
A 15-year-old German boy has been injured while attempting to build a bomb with plans from the internet, German police in Anklam reported on Wednesday.
