A man was tasered by the police in a Sheffield street while shocked residents looked on.
South Yorkshire Police said a taser was discharged during an incident in Cobden View Road, Crookes, last night.
A 29-year-old man was then arrested.
No other details have yet been released.
One woman, who filmed part of the incident, said she saw a police car stop another car on the street and then heard shouting.
She said: "I saw a police car intercept a black car on the road.
"An officer screamed for the guy to stop and place the weapon he had on the ground.
"I heard the officer tell the assailant he was armed and not to struggle repeatedly whilst he was shouting at the officer.
"He was then tasered I believe. Six cars and an ambulance soon arrived."