A Salvation Army charity worker has said she feels devastated after the Market Rasen centre was broken in to on Friday morning.
Envoy Anne Ward discovered the break-in after she was called to the centre around 7am that day by a passer-by who heard the alarm.
Once there, she found an inner door had been damaged and a collection box taken.
“I am so disappointed this has happened,” she said.
“If they were that desperate, they could have come to us to ask for help.
“We never turn anyone away.
“We make sure anyone who comes to us in need is fed and issued clothing when needed - I really am devastated that anyone would feel the need to break in like this.”
The offenders gained entry to the building by forcing a rear window.
They then used more force to open the locked doors leading into the Salvation Army charity shop, from where they stole the collection box.
The alarm on the building first went off at 3.15am and police officers were dispatched to check the premises, which they found secure at that time.
However, between then and the time Mrs Ward was called, the offenders returned and forced their way into the building.
“They have used a lot of force to break through the double doors into the shop,” added Mrs Ward.
“One panel of glass has been broken - it is toughened glass, so I don’t know how much that will cost to replace.”
Police enquiries are ongoing and anyone with any information is asked to call them on 101, quoting incident 66 of September 20.
Alternatively, to give information anonymously, call Crimestoppers on 0800 555 111.