Man with sword charged over Sydney fight

A man who armed himself with a sword during an argument at a unit block in Sydney's inner west has been charged after another man was assaulted.

Police say officers were called to the Marrickville unit block at about 11pm (AEDT) on Sunday on reports two men, aged 25 and 41, were fighting and other people had intervened to try to stop them.

After the 25-year-old man left and returned with a sword, the older man sustained an injury to his forehead.

He was taken to Royal Prince Alfred Hospital for treatment to non-life threatening injuries.

The 25-year-old was arrested and charged with armed with intent to commit an indictable offence.

He was given strict bail conditions to attend Newtown Local Court on February 11.