Hearts were heavily beaten 4-0 by on-form Turkish side Istanbul Basaksehir in their opening Europa Conference League match at Tynecastle.
A minute's silence at the start of the second half was held after news emerged of the Queen's death.
The Scottish Premiership club, competing in European group-stage football for the first time in 18 years, had a couple of promising moments in the first half but fell behind in the 26th minute.
Three further goals in the closing quarter of the match for the Turkish side ensured a disappointing evening in the Edinburgh drizzle for the Jambos, who have now lost six of their last seven games in all competitions.
Manager Robbie Neilson made five changes to the side that started Saturday's defeat at Livingston as Lewis Neilson, Toby Sibbick, Jorge Grant, Gary Mackay-Steven and Stephen Humphrys were replaced by Nathaniel Atkinson, Michael Smith, Peter Haring, Lawrence Shankland and Alan Forrest.
Istanbul, on a 17-game unbeaten run in all competitions stretching back to March, travelled to Edinburgh without former Real Madrid, Arsenal and Germany playmaker Mesut Ozil, who had suffered from a fever over the past week.
After Basaksehir had controlled possession in the early stages, Hearts had the first chance in the 14th minute when Andy Halliday produced a superb piece of skill to get himself in behind the visitors' defence but he took too long to get his shot away and the danger was snuffed out.
Istanbul captain Danijel Aleksic then saw two headers saved in quick succession by Hearts keeper Craig Gordon in the 20th minute.
Three minutes later, the hosts thought they had taken the lead when Haring beat keeper Muhammed Sengezer to a Smith cross and headed across the six-yard box to Stephen Kingsley whose goalbound header was scrambled off the line.
But Hearts fell behind in the 26th minute when Haring was dispossessed on the edge of his own box and Hasan Ali Kaldirim pounced on the loose ball wide on the left to fire a lovely angled left-footed strike from 18 yards out beyond the reach of Gordon and into the corner of the net.
Hearts had a let-off in the 34th minute when Aleksic fired the rebound over the bar from close-range after Bertrand Traore's shot was saved by Gordon.
The second half was a grim affair for Hearts. After Traore smashed a shot against the crossbar in the 50th minute, goals from Youssouf Ndayishimiye, Stefano Okaka and Berkay Ozcan in the closing quarter of the match ensured a wretched opening to the Conference League for the Edinburgh side.
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Europa League