Singer could face up to 10 years in prison if found guilty in a 2010 incident that left one concertgoer dead.

Lamb of God's D. Randall "Randy" Blythe was detained in Prague this week. The heavy-metal singer could face five to 10 years in prison for an alleged altercation at a 2010 Lamb of God show that reportedly left a concertgoer dead, according to Czech media outlet Novinky.

Early reports indicate the incident involved a man repeatedly rushing the stage from the crowd. He was ejected from the stage and later died of head injuries sustained during the alleged altercation, according to Novinky and WTVR, the CBS News affiliate in Lamb of God's hometown of Richmond, Virginia.

Lamb of God canceled a show at the Rock Cafe in Prague Thursday after the singer was brought in for questioning. Some reports say he was arrested and charged with "the crime of bodily harm of 4th degree and resulting in the death of a fan," however, representatives for the band say he hasn't been formally charged.

Randy's brother, Mark Blythe, told WTVR the manslaughter charge is "bogus and outrageous and will be dropped immediately."

The band tweeted the hashtag #FreeRandyBlythe late Thursday. (Blythe deleted his once extremely active personal Twitter account earlier this summer).

Maria Ferrero, the Grammy-nominated band's longtime publicist, told MTV News that Lamb of God's management will not comment in full on the matter until Monday. "As no formal charges have yet been made and the case is only in the investigation stages, it would be premature to make an official statement filled with false truths or innuendos," she said in an email to the press.

"Having said that, management wished to address today one false piece of information that has been included in many of the news stories released so far," she continued. "Under no circumstances was there a fight of any kind involved. This incident deals with a fan that three times during the concert jumped the barricade and rushed Randy during the performance. It is alleged that the third time, security was not able to reach him and that Randy pushed him back into the audience where supposedly he fell and hit his head. Again, until the investigation is concluded this weekend, nothing more will be released, but clarity and the facts needed to be addressed on this one reported point which is totally inaccurate."

The alleged incident took place during a show at Prague's Club Abaton in May, 2010. Friday night's (June 29) show in Germany is still listed on the band's official Facebook page, as well as a show on Sunday in Finland. Lamb Of God is currently on tour in support of Resolution, which debuted at #3 on the Billboard 200 in January.