OMAHA, Neb. (AP) — Police are looking into the possibility that three sex assaults around midtown Omaha could have been carried out by the same man.

Police say the first attack happened April 3, when a 26-year-old woman was grabbed from behind and groped under her clothes as she entered her apartment building at 37th and Jackson streets. The second took place two days later when a 20-year-old woman was grabbed and groped outside her Creighton University dorm.

The third attack also happened on the Creighton campus, when a 19-year-old woman reported being grabbed Nov. 5 outside her dorm.

Police are asking anyone with information to call CrimeStoppers.