Emergency services dealing with an incident near Fareham all railway lines are blocked. Between Fareham and Southampton.
Train services running through these stations are being delayed or revised. Disruption is expected until at least 9pm on Monday evening.
Replacement buses have been ordered but may take some time to get into effect. A number of trains are also trapped between stations as a result of the line closure. BTP have been called to the scene along with paramedics from South central ambulance service.
Alternative travel advice for rail travellers:
First Buses on routes X4 and X5 between Portsmouth Harbour, Fareham and Southampton Central
More to follow