Rescuers in Germany are searching for at least two people reported missing after the collapse of a building in the city of Cologne. Some reports say four people are still unaccounted for.
The building was home to the city’s archives department, one of the largest of its kind in Germany. Authorities say workers and visitors managed to escape from the building when they heard unusual noises. Local media reports say the collapse may have been sparked by work on an underground train line, but authorities have not been able to confirm this.