Two women went to local hospitals Wednesday with knife wounds sustained in a domestic argument in Nanakuli.

Paramedics took the women, one who is in her 20s and another who is 37, to hospitals in serious condition, an Emergency Medical Services supervisor said. Police said one woman went to the Queen’s Medical Center while the second went to Tripler Army Medical Center.

The EMS supervisor said the incident involved a domestic argument between sisters about 4 p.m. on Helelua Street.

Police opened an assault case.