The Spanish Police said Wednesday that they discovered an illegal suspect of underground shot range was operated by a weapons trafficking ring that supplied assault rifles and other weapons to drug gangs.
The officers raided a house in the southern province of Granada and found the site, which was located three floors underground, police said in a statement.
The neighbors could not hear the weapons at the depth of the range, authorities said.
Police said it was the first time they found an “illegal shooting field led by a criminal group” in Spain.
The authorities believe that the site was used to prove the weapons that the group supplied to the drug trafficking rings, who then used them to defend or attack rival gangs.
Police launched a video of the operation, which shows officers who slowly descend the narrow stairs in a structure similar to a cave, as well as the authorities that collect evidence.
“The operation has eliminated the weapons of the streets that could have been used to commit extremely serious crimes,” said the statement.
Police said the group offered to sell assault rifles, subestimal guns and automatic guns, as well as ammunition, bulletproof vests and other tactical equipment.
The officers arrested three people and confiscated several weapons and more than 60,000 euros ($ 68,000) in cash.
Most of the weapons were found buried in an open field, “full of preservation and ready to be used,” police said. The researchers said they were very cut in the hiding place “due to the strong evidence that firearms were being tested there.”
Spanish National Police 
Police said more judgments were possible.
Also on Wednesday, in a separate operation, the Police in Spain arrested more than two boxes their demands to gang members to cultivate and traffic marijuana. The judgments were made after the officers found videos on the social networks that show the suspects “detonating weapons and flaunting their standard of living,” according to a statement from the Ministry of Interior.
Spain is a great entrance door to Europe for drug trafficking networks due to its ties with the old colonies in Latin America and its proximity to Morocco, a main producer of cannabis.