A 90-year-old woman named Qin, who lives in Xiangyang city of China's Hubei province, found a metal tool 20 years ago.

The old woman took the tool home because it resembled a hammer and used it for 20 years for various household chores such as cracking nuts and hammering nails.

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In June, when the workers demolishing her old house recognized the tool, the woman learned that she had been using a grenade for years.

The police and bomb disposal team arrived at the woman's house after the workers informed them.

"We confiscated the grenade and asked experts to destroy it," police said in a statement.

FROM THE VIETNAM WAR

The grenade, recognized by the protective metal cap on its wooden handle, was identified as a Chinese-made Type 67 grenade from the Vietnam War.

The video, which became a hot topic on social media, sparked various debates as it had not exploded in 20 years. Some users said it could be a training grenade that had not been filled with gunpowder, while others countered that the grenade could not be fake because the police had confiscated it.

"Fortunately, this safety hazard has been eliminated and did not cause any damage or injury," the Baokang Public Security Bureau said.

Editor: David Goodman