Updated

The Missouri attorney general's office says it has no power to reopen an investigation into allegations that two teenage girls were sexually assaulted by some boys at a party in 2012.

The case is drawing renewed attention after The Kansas City Star on Sunday published the results (http://bit.ly/16dkTc1 ) of a seven-month investigation into the case in Maryville.

Melinda Coleman says justice was denied when Nodaway County authorities dropped charges in 2012 against the boys who her 14-year-old daughter claimed had sexually assaulted her and a 13-year-old friend.

County officials say the case against the boys fell apart because the Colemans would not cooperate. Coleman denies that.

A spokeswoman for Attorney General Chris Koster said Tuesday that Koster's office lacks the authority to review a local prosecutor's decisions in particular cases.