12/22/2011 09:56 am ET Updated Feb 02, 2016

Adam Lambert Arrested And Jailed After Bar Brawl With Boyfriend Sauli Koskinen In Finland

"American Idol" alum Adam Lambert was arrested and briefly jailed on assault charges in Helsinki on Thursday after a heated quarrel with his Finnish boyfriend and local reality TV star, Sauli Koskinen.

The Hollywood Reporter quotes Petri Juvonen, who headed up the police investigation into the event, as saying Lambert and Koskinen were arrested around 4 a.m. Thursday outside gay nightspot DTM, or Don't Tell Mama, and were released that afternoon after being interrogated.

According to Finnish tabloid the Ilta-Sanomat, the reason for the exchange between Lambert and Koskinen -- which began in one of the club's back rooms and continued on the street outside after the couple was kicked out -- has not yet been confirmed, and possible injuries were not severe.

Finnish beauty queen Sofia Ruusila, an ex-Miss Helsinki, also claims Lambert accidentally hit her by mistake when she tried to get between the couple, according to the Reporter.

It was a rough end to an otherwise great week for Lambert, who arrived in Finland on Monday to celebrate Christmas with Koskinen. The pop star's new single "Better Than I Know Myself," from his forthcoming album "Trespassing," was just released to great fanfare on iTunes this week.

Koskinen, who is best known as the winner of the 2007 Finnish edition of "Big Brother," has since blogged about the incident, according to TMZ. "Publicity is not easy, but also celebrities are just human," he writes. "Love is not easy either, but it lasts forever!"

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