 A female staff member was dragged around by the robbers |
Several roads are expected to be closed as television crews film a reconstruction of an armed bank robbery in which police were shot at. Robbers fired at a police van as they made their getaway from Barclays Bank in Horwich, Bolton, in November.
Crews from BBC One's Crimewatch programme are in Horwich with police to film scenes for a televised appeal.
Road closures will affect the town centre, Winter Hey Lane, Red Rock Lane, and Crown Lane in Haigh for two days.
CCTV footage from the robbery shows masked men - armed with shotguns and machetes - running into the bank as they did on 29 November.
After assaulting staff, the pair fled with a large sum of cash and later fired at a police van's windscreen.
 One of the robbers shot at the van as it drew up behind their car |
One woman is shown being dragged around by the men.
The Crimewatch appeal will be shown on 8 February.
Det Ch Insp David Law, of Greater Manchester Police, said: "We would encourage everyone in the local community to watch it as it may bring back memories of something that you may have felt was insignificant at the time but could now hold the key to solving this crime.
"The reward has been increased to �50,000 and is available for information leading to the arrest and conviction of the people responsible.
"We want to be able to give this money away, so tell us what you know."