Has the singer taken up Zayn Malik's bad habit?
The snap – which was taken in Tokyo, Japan – shows Niall, 20, putting his arm around Liam, 20, who’s clutching a lit fag in his right hand.
‘We are havin fun in Tokyo ! Konnichiwa !’ Niall captioned the shot.
This isn’t the first time that Directioners have been worried about the lads’ health.
Last year, Niall apologised after he was pictured with a sneaky cig during a boozy night out.
Niall‘s Instagram followers were pretty upset after seeing the shocking picture of Liam.
‘I gonna cry why is Liam smoking? He’s better then that. Niall I know you probably will not read this but if you could please help Liam we would be really great-full,’ wrote one.
Another said: ‘LIAM SMOKES OMG :-(((((.’
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