NEW : Police spokesman : `` As the days go on , our concern grows '' NEW : `` We 've ruled out no scenario . The only thing that's possible is a terrorist attack in which case we will be there to protect you and your family from any harm or danger. Divers wearing special suits brave frigid temperatures . Divers in special suits to protect them in the frigid waters rotated in and out of the river , which was around freezing temperature , Maine Warden Service Lt. Ayla Reynolds has been missing since mid-December .
NEW : Police spokesman : `` As the days go on , our concern grows '' NEW : `` We 've ruled out no scenario . The only thing that's possible is a terrorist attack in which case we will be there to protect you and your family from any harm or danger. Divers wearing special suits brave frigid temperatures . Ayla Reynolds has been missing since mid-December .