Authorities arrested a man considered a "secondary suspect" in last week's kidnapping and sexual assault of a 10-year-old girl in Northridge, law enforcement sources told The Times on Monday.
Details about the arrest Sunday of the man, whom the sources identified as Daniel Martinez, were unavailable and his connection to the case was not immediately known.
Another suspect, identified by police Saturday as 30-year-old Tobias Dustin Summers, remains at large.
Police said Summers had a criminal history dating back to 2002 that includes charges of kidnapping, robbery, explosives possession and petty theft. LAPD officials said he was released from custody in July 2012 under realignment.
Summers is not a registered sex offender, but authorities said he was arrested on suspicion of battery in 2009 in a case that involved child annoyance.