Opportunist burglars escaped with cash from two Kirkby bungalows after occupants left their windows open.
The burglaries happened overnight on Friday into Saturday 18th to 19th July, in Poplar Avenue.
In both incidents the elderly victims were asleep as their homes were searched — in one case even the bedroom — before substantial amounts of cash was stolen.
A Police spokesman said no one was injured but the women were shaken by the intrusion.
The officer added: “Don’t leave your home vulnerable to opportunist thieves.
“If you are leaving your windows ajar in the hot weather, use a locking mechanism so they can’t be opened further.”