(KAIR)--An Atchison woman is accused of threatening two roommates with a handgun and allegedly holding them against their will during a violent disturbance late last week.

According to a release from Atchison Police Chief Mike Wilson, 63-year-old Nena Dempsey was arrested Friday in the 1400 block of Santa Fe Street on charges of aggravated assault, criminal restraint, and battery.Wilson says officers responded to a disturbance at a residence in that location around 8:30 Friday morning. An investigation determined it began around 10:00 Thursday night and involved all three who reside together.

During the disturbance, Dempsey allegedly threatened the two roommates with a handgun and then locked them, a 56-year-old man and a 66-year-old woman, inside a bedroom where they remained throughout the night.

Police also allege Dempsey struck the 66-year-old woman in the face multiple times Friday morning.

Dempsey was taken into custody then transported and booked into the Atchison County Jail. Her bond is set at $20,000. 

In a separate, unrelated arrest that followed that of Dempsey two days later, Atchison Police arrested a Horton man Sunday on a Brown County warrant charging him with numerous crimes, including an attempted murder charge.

According to a release from Wilson, 29-year-old Thomas Pahmahmie was taken into custody around 11:15 Sunday morning at a residence in the 500 block of Atchison's Park Street.

Wilson says Pahmahmie was wanted on an outstanding Brown County warrant for attempted second-degree murder, aggravated kidnapping, aggravated battery, aggravated domestic battery, and criminal threat.

Atchison Police were notified by Horton Police that the suspect was believed to be in Atchison, leading Atchison officers to locate Pahmahmie at the residence where he was arrested without incident.

Once in custody, Pahmahmie was transported and booked into the Atchison County Jail. He was released Sunday evening to Brown County custody. His bond is set at $2 million.