We have surveillance teams working 24 hours a day around the park looking for dead birds.

A migratory bird that is infected cannot get very far, let alone to Europe.

There has been a strong campaign to inform those who live on the edge of the park to tell them they shouldn't pick up dead birds.

This went on 24 hours a day.

There are 24 hours in a day, and you can use all of them.

The rig is operating 24 hours per day, seven days per week, until we get down to our total depth.