Netanyahu declares national day of mourning after tragedy during Lag B’Omer festivities in Meron At least 45 people were confirmed dead and 150 injured, with dozens in serious condition. Israeli rescue forces and police at the scene after a mass fatality scene during celebrations of the Jewish holiday of Lag B’Omer in Meron, in northern Israel, on April 30, 2021. Photo by David Cohen/Flash90. 697 WORDS (April 30, 2021 / JNS) Israeli Prime Minister Benjamin Netanyahu declared a national day of mourning for Sunday over the disaster that took place at a massive Lag B’Omer gathering at the foot of Mount Meron on Friday morning.