Following the publishing of the leaked footage, Troy told The Mirror: ‘I’m worried for him.’
Louis’ dad worries that the pressures of fame have led him to start heading down the wrong path.
‘I do believe that being that famous will be taking its toll on them. I think everyone is concerned it could lead to other things.’
‘He said he would never get a tattoo because it was a scar and he would never smoke because it would damage his vocal cords.’
Louis now has several tattoos and the leaked footage differs from the opinion Troy believed Louis had over smoking.
‘He’s gone the opposite way and I hope it doesn’t get worse.’
The video shows Louis and band mate Zayn Malik appearing to smoke a ‘joint’ in a car during the South American leg of their world tour.
‘So here we are, leaving Peru. Joint lit. Happy days!’ Louis is heard saying.
They then drive past police where he remarks: ‘He’s having a look. He’s thinking, ‘I’m sure I can smell an illegal substance in there’. And he’s hit the nail on the head.’
Some fans have turned their back on the band, with one former Directioner reportedly even burning her concert tickets.
When asked about the incident, One Direction’s spokespeople told The Mirror: ‘The matter is in the hands of our lawyers.’