- The new arrangement is being announced by International Development Secretary Justine Greening
- Doctors, nurses, surgeons, anaesthetists and other staff can now pre-register
- They can sign up to the UK's International Emergency Trauma Register and indicate their availability
- Medics could then deploy rapidly to the scene of emergencies such as tsunamis, earthquakes and floods
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Around 800 people have been evacuated as wildfire tore through farmland, destroying homes and killing hundreds of cattle.
The shadow chancellor appeared to differ from his leader, who had been initially reluctant to blame the Kremlin for the ex-spy attack.
The Foreign Secretary said the Kremlin's tit-for-tat expulsion of 23 British diplomats would only impact Vladimir Putin's compatriots.