An allegedly armed woman was detained after engaging in a standoff with police while swimming in MacArthur Park Lake Friday afternoon, video from Sky5 showed.

Officers responded around 3 p.m. to reports of a woman with a handgun in the park, at Sixth and Alvarado streets, and wound up opening fire on her, according to the Los Angeles Police Department.

After officers fired, the woman jumped into the lake and swam to an island, where she stayed for some time, said LAPD Sgt. Frank Preciado.

The woman did not appear to be injured as she walked around the island, fiddling with items in a bag and at times dipping her legs into the water, the aerial video showed.

Police officers were stationed on either side of the lake, some with less-lethal guns drawn, monitoring the woman.

Witness David Hernandez said the incident began with the woman shooting at birds, according to the Los Angeles Times.

David Hernandez, who visits the park often, told the Times the woman often takes dips in the lake, earning herself the nickname “the Mermaid.” Hernandez said he didn’t know her real name, but she lives in a in the area. 

About two hours into the standoff, the woman left the island to swim around the lake and float on her back. Preciado said she was “just really being defiant on coming out.”

A dive team was on standby in case they needed to jump in to take her into custody, the sergeant added.

But the woman emerged from the water on her own at about 5:50 p.m. and was soon taken into custody by a group of about 20 officers.

Police could also be seen entering the lake in a small boat to begin searching it as the woman emerged.

She was loaded into an ambulance, but police could not immediately confirm if she was injured.

No further details were available.