(Updated at 11:35 a.m.) Arlington County police are investigating a reported sexual assault on the Custis Trail near Rosslyn.

A woman was reportedly sexually assaulted by a male suspect on the trail between N. Quinn Street and N. Oak Street just after 11:00 a.m. The man then fled west on the trail, possibly running into a nearby apartment complex.

So far, the suspect has only been described as a white male wearing gray shorts. A police K-9 unit is being brought in to track the suspect, but establishing a track may be difficult given the rain.

Officers believe the suspect may be responsible for at least one other, similar assault that occurred in the same area.