A 91-year-old woman has been praised for her bravery after overpowering a bank robber armed with a knife.

The sprightly pensioner had been at a PKO bank in the town of Przemyśl when the female robber burst in and grabbed a bank worker by the hair.

Brandishing the knife and threatening to kill, the wannabe crook was demanding money before being handed 12,500 złoty.

The female robber burst in and grabbed a bank worker by the hair. Brandishing the crook threatened to kill if she wasn’t given money.YouTube

As the robber forced the employee to her knees, a video recording shows another employee asking her what she is doing.

The woman replies: “I’m robbing the bank.”

But as she tries stuffing the cash into a plastic bag while still holding on to the employee’s hair, the video shows the fearless granny appear and start battering her over the head with her walking stick.

As the thief tries stuffing the cash into a plastic bag while still holding on to the employee’s hair, the video shows the fearless granny appear and start battering her over the head with her walking stick.YouTube

She is then overcome by other bank officials who hold on to her until the police arrived.

Prosecutor spokeswoman Marta Pętkowska said: “Undoubtedly, in this whole situation, the senior lady who reacted at the right time and thwarted the attack deserves praise.”

Prosecutor spokeswoman Marta Pętkowska said: “Undoubtedly, in this whole situation, the senior lady who reacted at the right time and thwarted the attack deserves praise.”YouTube

She added: “The suspect will be charged with robbery with a dangerous instrument.

“The crime is punishable by imprisonment for a period of not less than three years.”