Ten Leicester City fans were arrested for public disorder after throwing bottles and breaking furniture ahead of the English side's Champions League quarter-final, first leg with Atletico Madrid, Spanish police said Wednesday.
A first group of eight travelling supporters were detained in one of central Madrid's tourist hotspots, Plaza Mayor, on Tuesday night after clashes that left three police officers and two fans slightly injured.
On Wednesday, Leicester City fans once again started "throwing bottles and breaking furniture" on the same square around 1800 local time (1600GMT) before the game started, a police spokesman told AFP.
"Police charged several times," he said, adding two more supporters were detained and the others were escorted to the stadium for kick-off.
The Leicester fans had gathered to drink in the various bars and restaurants in the Plaza Mayor, a spot often invaded by travelling fans for Champions League matches.
Emergency services said they had had to attend to five people on Tuesday evening and another 13 on Wednesday – eight police officers and five supporters – none of them seriously hurt.
"We didn't need to take any of them to hospital," a spokesman said.