In Italy, the number of wildfires was three times the historical average by the end of June.[20] Temperatures in Rome reached 40.8 °C (105.4 °F) on 28 June.[21] A glacier on the mountain of Marmolada collapsed on 4 July, killing 11, and the collapse was attributed to the abnormally warm temperatures.[22] On 5 July, a state of emergency was declared in five northern regions in response to a severe drought in the Po valley, the worst in 70 years, and later for Tuscany.[23]