The coastal city of Porto in Portugal was almost shutdown for two days straight to shoot an intense and high-speed action sequence between Bollywood stars Hrithik Roshan and Tiger Shroff for the upcoming film War, says its director Siddharth Anand.

"We shot an intense, high-speed action sequence between Hrithik and Tiger in Porto. The high octane scene required Tiger to chase down Hrithik and this extensive sequence needed us to get permission to shut down the main bridge at Porto for two days," Anand said in a statement.