A 33-year-old is said to have distributed several self-made explosive devices in Leipzig and injured two people.
An arrest warrant was issued against the man, the police announced on Thursday.
He is accused of causing explosives in several cases in connection with dangerous bodily harm.
According to the police, there is an urgent suspicion in five cases - in another case there is suspicion, it said.
Leipzig - An explosive device exploded in a used clothing container at the beginning of June.
The suspect is said to have also deposited explosives on the edge of sidewalks or in a deposit machine since May.
Some of them caught fire, exploded or fizzled out.
Two men, aged 36 and 40, were injured.
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The investigators apparently got on the track after a deflagration in the man's rented apartment in Leipzig at the beginning of the week.
The 33-year-old was taken to hospital injured.
Presumably he tinkered with the devices himself at home, said a spokesman.
The 33-year-old was provisionally arrested and an arrest warrant was issued on Wednesday.
dpa