After an assailant driving an S.U.V. killed five people, calls for solidarity have quickly given way to criticism by rival lawmakers, ahead of snap elections set for February.

The Berlin Borough police chief said they would have acted on the warning from Germany if they'd been aware of it.

Germany's far-right AfD party on Monday held what it called a "memorial" rally for victims of a car-ramming attack on a Christmas market that has newly inflamed debate on migrant and security policy.German Christmas markets -- among the country's most iconic and beloved festive events -- have been specially secured since a jihadist attacker rammed a truck through one in Berlin in 2016,