Man allegedly stabs cousin in Sydney

A man has been charged after allegedly stabbing his cousin in the leg in Sydney's south.

Police say that at about 6.15pm on Monday a 25-year-old man was visiting his 38-year-old cousin in Peakhurst when they began arguing and the older man stabbed the younger man.

The victim managed to walk to a nearby street where a witness provided first aid and contacted emergency services.

He was taken to St George Hospital where he was treated for a wound to his leg.

Police arrested a 38-year-old man at the Peakhurst address and charged him with wounding a person with intent to cause grievous bodily harm and reckless wounding (domestic violence related).

He was refused bail to appear in Sutherland Local Court on Tuesday.