They are primarily being deployed in Belfast.
The UK Government has approved sending 100 military doctors to Northern Ireland to support under-pressure hospitals dealing with Covid-19.
The medics are expected to be deployed at two hospitals in Belfast, and possibly a third.
They will be sent to Northern Ireland in the next few days.
A&E Consultant at the Ulster Hospital, which is under-pressure is Dr. Andrew Dobbin - he says the help is needed