Last month Service Director Nino Piccoli expressed a need to replace sandstone slabs in Medina’s historic district with concrete as these areas have created a tripping hazard in recent years.

The slabs were thrown into the pool and three 14ft (4.3m) windows were smashed at Kidsgrove Sports Centre on Sunday night, duty manager Chris Kozubik said. She said: "I found the slabs in the pool ...