The 24-year-old centre-half will join the Nerazzurri on a temporary basis but the Serie A side retain the right to make the deal permanent in 2017
Inter have completed the two-year loan signing of Barcelona defender Martin Montoya.
The centre-half is a product of the the Blaugrana's famed youth academy at La Masia and broke into the senior squad in 2011.
However, Montoya never managed to nail down a regular berth in the Catalans' starting line-up and has now sealed a switch to San Siro.
"F.C. Internazionale is delighted to announce that Martin Montoya has joined the club on loan from FC Barcelona," read a statement on the Italian club's official website. "The Nerazzurri have an option to make the deal permanent.
"The defender arrived in Milan to undergo a medical yesterday, with the formalities now completed.
"The 24-year-old Spanish defender has won nine trophies over the course of his domestic and international career, and arrives off the back of Barcelona’s successful treble-winning season last term.
"Everyone here at Inter would like to wish Martin a very warm welcome!"
Nerazzurri president Erick Thohir was the first to publicly express his delight at Montoya's signing.
"It's a pleasure for us to welcome Martin Montoya to Inter," the Indonesian told the club's official website. "I met him at the airport and my first impression was excellent.
"Our squad is becoming stronger by the day and our aim is to keep on getting better and better."
Montoya is the second centre-half to join Inter on Friday, with the Roberto Mancini's squad also having been bolstered by the arrival of Colombia international Jeison Murillo from Granada.
