Karim Benzema scored a hat trick as Real Madrid beat Barcelona 4-0 in the second leg of their Copa del Rey semifinal in a fiery affair at Spotify Camp Nou on Wednesday night.

The hosts came into the match with a three-game win streak over their biggest rivals, having beaten them in the Spanish Supercopa in January and the Copa del Rey first leg and LaLiga in March.

However, a late first-half goal from Vinicius Junior and a second-half hat trick by Benzema put Madrid on track for the 4-1 aggregate win and a date with Osasuna in the Copa del Rey final.

Barca looked set to their dominance for much of the first half, but a Thibaut Courtois save on one end led to a quick-hitting counterattack at the close of the opening 45 minutes, which finished with Vinicius flicking the ball past Marc-Andre ter Stegen to level the tie on aggregate just before the break.

"It's the first time for me with Madrid, very happy to reach a final," Courtois said after the match. "It was a difficult road. We went away to Villarreal, played Atletico at home and then a semifinal with Barca. We're there and we've won, we're happy to play another final.

"We kept playing as we were playing [in the first half]. In the Supercopa we didn't play well. At home in the cup, in the league we could have won. We had confidence, and today we finished well, above all at the start of the second half, making it 2-0, then the penalty and then finishing with the fourth, it was great.

"For sure, we've lost games against them too. You want to win a Clasico, and giving the image of a 4-0 here is important; we're happy."