Whitney Houston plane incident due to exhaustion, says source

Whitney Houston's recent altercation on a plane was due to exhaustion, it has been reported.

On Wednesday, the 'When You Believe' singer was allegedly almost kicked off an airplane in Atlanta after she refused a request to buckle her seatbelt.

While Houston eventually allowed a flight attendant to buckle her belt, the incident sparked claims that the 48-year-old was intoxicated at the time.

However, an insider vehemently denied the reports, telling People that Houston was simply suffering from exhaustion.

"She wasn't drunk, drinking or on drugs; she was just exhausted," the source said.

A rep for Houston has yet to comment on the matter.

In June, the singer elected to continue receiving help for her drug and alcohol issues in spite of successfully completing a 30-day substance abuse programme.

Houston previously spent time in rehab in 2005 and 2006 for an alleged addiction to crack cocaine.

Watch the video for Whitney Houston's 'Run To You' below: