A rodent trap (1) is disclosed, comprising an outer housing part (2), an inner housing part (3) telescopically inserted into the outer housing part, and one or more biased spring loads arranged to apply a contracting force between the outer housing part and the inner housing part or at least a part thereof, wherein a trigger string (7) is arranged so that, as long as the trigger string is intact, it prevents the inner housing part or at least a part thereof from being inserted longer into the outer housing part than to a certain predefined position, in which an entrance opening (4) in the inner housing part is still outside the outer housing part, whereas, when the trigger string is broken, the inner housing part or at least a part thereof is forced further into the outer housing part, until the inner housing part and the outer housing part together form an airtight chamber.
