Digging is under way in an attempt to rescue a puppy trapped in a badger sett for more than three days.
Council experts are now using a mini digger to try to find the missing dog.
A major search from fire crews was unable to locate the missing pooch, and RSPCA bosses, council teams, Lancashire Badger Group representatives and a Dyno Rod engineer were on site desperately searching for Mitzi.
Owner Mark Jackson, 46, has been waiting anxiously in the woodland since Saturday evening.
He said: “I’m frustrated. Time is of the essence and it’s running out.
“I just want closure.
“It’s the not knowing that’s the issue, I’m hoping it’s a happy ending.
“Everyone has been brilliant.”
Mitzi ran into the set while walking with Mark’s children Milli and Jack on Saturday, and has not been seen since.