US guns make up as much as 60 percent of the weapons on sale on the dark web, new research has found.

Weapons, drugs and stolen identities are readily available on the dark web, a . To investigate where guns, darknet market links ammunition and guides to their use come from, the UK’s University of Manchester and think tank Rand dark web market urls Europe — or cryptomarkets — and found 811 listings relevant to the study, published Wednesday.

Most weapons were from the USA, where , and darknet markets links most sales were destined for Europe. A gun bought from the Dark Web Sites web was used in a .

“The dark web is both an enabler for the trade of illegal weapons already on the black darknet market and a potential source of diversion for weapons legally owned”, said Giacomo Persi Paoli, the report’s lead author. “The ability for criminals and terrorists, as well as vulnerable or fixated individuals, to make virtually anonymous purchases is perhaps the most dangerous aspect.”

On Thursday, darknet market links US and European law enforcement agencies the , two of the three largest dark web markets.