Whanganui police were called to Guyton St on Friday night following reports of disorder.
A Police spokesperson said a group known to each other was fighting around 9.40pm.
Multiple weapons - not firearms - were seized.
“A 19-year-old man has been remanded in custody due to appear in court on July 4 on charges of wounding with intent to cause grievous bodily harm,” the spokesperson said.
“Police are following positive lines of inquiry.”