The mother of a young One Direction fan has revealed that as she left Dublin's Croke Park after the band's recent concert with her happy son, someone threw bleach over them from above.

Speaking to RTE's Liveline programme, Deirdre explained that they had a fantastic night at the show and her son was overjoyed at having seen "his heroes perform", but the event was completely ruined by what happened as they left at the end of the set:

"One Direction put on an excellent show. He had a great time, he was singing along to all the songs. Everything was great, right down to the security and the gardai. We came out and we were shown what way to go. We were heading back to Abbey Street to get the Luas, following the directions the gardai gave us.

"We were walking up the street and the rain was getting heavier. I said to my son to put on a raincoat but he wanted people to see the One Direction T-Shirt he bought at the concert. It was €25 of his own money and he wanted to spend it to get this shirt."

She added that they initially thought the bleach was just water so were shocked and disgusted to discover otherwise: "As we were walking we felt a lot of water fall on us. We thought it might have fallen from a tree but there were no trees around."

"I looked up and I saw one window open with no lights on. It was only when my son said to me ‘Mum, that smells like the swimming pool’ then I thought, 'Oh my God, they’ve just thrown bleach out the window at us'. His One Direction hat was the only thing that protected him. If he had of wiped his face, he could have ingested it and it would have been a totally different story. We could have been in hospital."

Watch footage from One Direction's Croke Park shows below: