Authorities charged a 45-year-old Iroquois Point man with first-degree sexual assault for allegedly sexually assaulting two teenage girls in separate cases.

He was being held on $500,000 bail.

Police arrested Dewitt Long on Monday for allegedly sexually assaulting a 16-year-old girl 11 p.m. May 9 to 1 a.m. May 10 at a Honolulu Airport-area hotel.

Police said the girl reported he sexually assaulted her. 

Police arrested Long on suspicion of first- and third-degree sexual assault and kidnapping. He was charged Tuesday with first- and third-degree sexual assault.

Long was already in custody for allegedly sexually assaulting a 13-year-old girl on Sunday in Ewa Beach.

He was charged with first-degree sexual assault and kidnapping in that case.

The girl told police he sexually assaulted her at 10 p.m. Sunday. He was arrested 50 minutes later at his home.