POLICE could send messages to people's mobiles phones within 30 seconds of an explosion in Manchester city centre.

It is part of a system set up to evacuate the area quickly in the event of major incidents -- such as bombs, gas and chemical leaks, fires and floods.

Messages would also be sent to personal computers and pagers under the Manchester Alert Scheme.

In 1996, a large part of the city centre near the Arndale shopping centre was destroyed by an IRA bomb.