A particularly pugnacious cat became the star of the Riga, Latvia mayor's online Q&A after it jumped onto the table and began drinking from his mug.

The unnamed spy, who was the BND's station chief in Riga, had become romantically involved with a Latvian woman - despite warnings about fraternizing with locals.

Early reports suggest the roof caved in due to either faulty construction or building work on its grass- and gravel-covered surface, where workers were installing a garden area and children's playground for an adjacent high-rise residential building.