AN AVALANCHE warning for the Spanish side of the Pyrénées has been issued by the State meteorological agency, AEMET.
The risk is mainly present in Navarra, although anyone who is currently in any other border region should stay tuned for possible safety alerts.
With most of Spain now experiencing plummeting temperatures – dropping to below freezing in many inland parts – snow is likely at lower altitudes.
The top layer of snow in Navarra's mountains is said to be 'unstable' and could slide at any time, and AEMET's avalanche warning will remain in place until at least 18.00 today (Sunday).
Navarra's regional government has appealed to the public to avoid high-risk areas and take extra precautions when heading into the Pyrénées.
Falling night temperatures mean ice and frosts, which could lead to accidents caused by slipping.
Climbers should ensure they are fully equipped with crampons, and anyone planning on going up to the slopes should wear warm, waterproof clothing and make sure their mobile phones are fully charged.