London Police are investigating an early morning incident that sent two people to hospital.

Police were called to York and Richmond Street just after 3:00 a.m. Sunday morning for an assault.

Officers have arrested two men in relation to the incident.

Police say two men are currently listed at London Health Sciences Centre in critical condition.

The intersection was shut down for a period of time for the investigation, but has since re-opened.

The investigation is in its early stages and more information is expected to be released later.