A police officer has been punched and spat on and three men arrested following a fight in Sydney’s southeast.

A scuffle started outside a bar on Botany road in Botany on Monday night when police tried to remove a patron from the bar.

Police allege a 22-year-old man punched an acting Sergeant in the head and spat on him before running from the pub.

He was caught a short time later.

Police arrested a further two men, aged 36 and 40.

They were all taken to Redfern Police Station where the 22-year-old was charged with two counts of assault occasioning actual bodily harm to police.

He was refused bail and will appear in Central Local Court today.

The two other men were both charged with assaulting police and were granted bail to appear in the Downing Centre Local Court on January 13.

The Acting Sergeant suffered a laceration to his head and was taken to Prince of Wales Hospital for treatment.

Two other officers involved were not hurt.