A man was arrested after he allegedly knocked a police officer down a flight of stairs at a Leavenworth apartment, a police spokesman said.

A man was arrested after he allegedly knocked a police officer down a flight of stairs at a Leavenworth apartment, a police spokesman said.

The incident was reported Monday in the 300 block of Dakota Street.

Officers initially were called to the 300 block of Kiowa Street around 8:40 p.m. after the Leavenworth Police Department received a report of an incident involving a man and woman, according to Maj. Dan Nicodemus, deputy chief of the Leavenworth Police Department.

Officers arrived and met with a woman. She told police that a man had come up from behind her.

“She thought that he was going to grab her so she screamed,” Nicodemus said.

The suspect then reportedly ran off. The woman did not want to make a report to police.

As officers were leaving the scene, they were approached by several relatives of the suspect who reported that he allegedly tried to take one of their vehicles but they were able to take the keys from him. The suspect then reportedly ran into an apartment in the 300 block of Dakota Street where he was staying, according to Nicodemus.

The deputy chief said the family members reported the man was acting erratically and possibly under the influence of some substance.

Officers made contact with the man at the top of the stairs in the apartment, and he allegedly pushed one of the officers down the stairs, Nicodemus said.

The suspect then allegedly ran and led officers on a short foot chase. Nicodemus said police tried to use a Taser gun on the suspect during the chase, but it was not effective.

Family members reached the suspect before the officers and helped to detain him.

The 19-year-old man was arrested for allegations of aggravated battery on a law enforcement officer and interference with a law enforcement officer.

Nicodemus said the officer who reportedly was pushed down the stairs suffered a head injury. Another officer had a hand injury as a result of the incident.

The officers were treated at Saint John Hospital and released.

“They'll be OK,” Nicodemus said.

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