Fire crews from Billinghay attended a trailer fire on Saturday morning.
The incident was reported at 6.14am on Fen Road, Ruskington.
A cause for the fire is not yet known but police are looking into it.
A fire crew from Donington investigated fire alarms sounding on West Road, Billingborough on Sunday morning, reported at 9.46am.
There turned out to be no fire, as the alarm had been caused by a system fault.