A pensioner living in her Pettigo home was thrown to the ground on Saturday night as robbers searched her home for money.
The robbery took place at around 11 o clock on Saturday night.
The 78-year-old is the second pensioner living along the border to be targeted in the past week.
The news comes in the wake of the assault and robbery of a 96-year-old in Buncrana just over a week ago.
Donegal South-West Deputy Thomas Pringle says it seems that there are gangs who are now purposely targeting vulnerable pensioners....