The thieves hoped to steal thousands from the Royal Bank of Scotland branch in Poynton, near Macclesfield, Cheshire, but clearly had not done their homework.
Having forced their way into the wrong property, they tried – and failed – again to get into the bank before running out of time and fleeing.
....Insp Gareth Woods of Cheshire police said: "This offence seemed organised to a certain extent but was clearly not the slickest and best executed crimes we have ever seen.
"It looks like they've broken into a flat above the bank and pulled some carpet up and made a hole in the floor only to end up in the space below.
"They clambered back up and went to another room to drill a hole in the ceiling of the bank but couldn't gain access.
"We can only assume they must have taken a long time to do it and they probably fled because they ran out of time or were disturbed."