Pittsburgh Mayor Luke Ravenstahl's absences raise questions

(Pittsburgh) -- Pittsburgh Mayor Luke Ravenstahl's absence from public events in recent days is fueling speculation as he stays behind closed doors.

Ravenstahl remained out of sight early today and the mayor's office isn't commenting, leaving others to try to explain his absences in the middle of his re-election campaign.

Kevin Quigley, a city public works employee and friend of the mayor, told the Pittsburgh Tribune-Review and Pittsburgh Post-Gazette on Wednesday night the 33-year-old mayor will be holding a press conference in the next couple days to discuss "some issues."

Ravenstahl's campaign manager, Aletheia Henry, says he missed several events because his mother is ill. City Council President Darlene Harris says there were "some personal problems."

Ravenstahl is also dealing with a federal investigation of city police business.