Inter Milan GM Beppe Marotta admitted concern for fans after their 0-0 draw at Porto.
The result sees Inter reach the Champions League quarterfinals 1-0 on aggregate. But there was concern for the way Inter's away fans were treated on the night.
We celebrate this passage that Inter had not achieved for 12 years, we give the credit to our coach, our players and the fans who were present," Marotta told Sky Italia.
I also want to spare a thought for circa a thousand fans who were left outside the stadium even after regularly purchasing a ticket. This was unexpected and obviously we will make a formal complaint to UEFA to have a clear picture of what happened.
I saw footage of families who were locked outside, children crying who had flown here from Italy. Football must represent unity and joy, so this is a bitter page in what was otherwise a wonderful evening.
We had met with the local authorities this morning and they assured us that the fans would be allowed in even beyond those limits of the away section. Instead, this did not happen.
These were for the most part families with children, who certainly weren't here to perpetrate acts of violence, but to support their team. I don't believe the situation was so serious as to ban their entry.
We realise UEFA are not to blame, but we feel that with a formal complaint we can prevent this sort of thing ever happening again."
