Swedish police blow up their own building defusing a moped bomb

Yes, you read that right. Swedish police found a moped rigged with explosives, and in the process of attempting to safely detonate the contraption they managed to entirely destroy one of their own buildings:

But something went wrong and the blast became more powerful than the police had intended. Photos from the scene are seen in one of the police buildings that have been completely destroyed 

- It did not go quite as one had hoped because it became such a powerful detonation. At the same time, they had been taken into account, which is why they evacuated the area, says police spokesman Erik Terneborn.

The article also mentions that the exposives were ringed with nails, making it clear that it was a bomb intended for use against human targets on mass.

I bet Swedish police didn't discover moped anti-personnel weapons prior to mass immigration.