STAFF at Eccleston Park nursery have been hit by a mysterious case of 'double vision' over a phenomenon they believe makes their 'tots class' unique.

For the group at the nursery contains a staggering five sets of twins and this number will grow even more when another two sets join later in the year.

Teacher, Valerie Simm, says that staff at the nursery are amazed at how a class can have so many twins, and added that they have been fascinated by how the three and four-year-olds have mixed in the group.

Valerie said: "The lovely thing is that they are all quite different, so it's really interesting how alike and different they are.

"It really is unique. There must be something in the water round this way - It really is something."