Baltimore police have set up a tip line for residents to call with information about suspects in a series of rapes that may be related.

Police spokesman Anthony Guglielmi (goo-lee-EL'-mee) says the tip line - 888-223-0033 - will be staffed 24 hours a day by detectives.

Police are investigating eight rapes that have occurred since Oct. 20, three of which occurred near bus stops and may be connected.