Lionel Messi and Luis Suarez both scored as Barcelona......
Suarez turned in the opener for the visitors from Aleix Vidal's drilled cross, before Neymar tapped in the second from close range.
Barca turned on the style in the second half with four goals in the space of nine minutes, as Messi stroked in the third before Alexis' own goal.
Ivan Rakitic smashed home from inside the area and Suarez added the sixth.
These two sides will meet again on Saturday, 27 May in the final of the Copa del Rey after Barca got past Atletico Madrid and Alaves edged through against Celta Vigo.
The visitors dominated this match and fully deserved their win with 70% possession, as well as scoring with six of their nine shots on target.
Uruguay forward Suarez was on the scoresheet again and now has 18 goals this season, making him the league's top marksman, one ahead of team-mate Messi.
Real Madrid picked up a 3-1 victory over Osasuna to propel themselves back to the top of La Liga.
Cristiano Ronaldo's opening goal was cancelled out by Sergio Leon, but in the second half Isco gave Zinedine Zidane's side the win before Lucas Vazquez got a third in stoppage time.
Latest Stories
-
Alexander Djiku hails Fenerbahce’s effort in hard-fought win over Konyaspor
31 minutes -
U-20 World Cup 2009: Black Satellites players reject payment on matured investment
36 minutes -
We reaffirm our unwavering support for government’s efforts to ensure stable, affordable electricity – IPGG
43 minutes -
Baseball: Ghana’s Golden Palms retain African Youth Championship title
47 minutes -
ORAL is set up to settle political goals, revoke it – Ansah-Asare
47 minutes -
Hamas has accepted a draft agreement for a Gaza ceasefire and the release of hostages, officials say
49 minutes -
Joy Prime’s Changes Wedding Gown giveaway: Rose Abaya rocks gifted gown from Peace Bridals
53 minutes -
This economy has to deliver jobs for Ghanaians – Dr Theo Acheampong
60 minutes -
I went to Shatta Wale for advice during my campaign – A Plus
1 hour -
Mahama embarks on peace mission to Bawku and Nalerigu
1 hour -
Karela United closes in on Nurudeen Amadu as new head coach
2 hours -
Kotoko’s Amoah ruled out for 2 months with ankle injury
2 hours -
Akufo-Addo’s government showed no interest in investigating election-related deaths – Peter Toobu
2 hours -
ORAL is corruption CCTV – Ablakwa
2 hours -
Rising bond yields point to fiscal challenges for sovereigns – Fitch
2 hours