Hurriyat (M) chairman Mirwaiz Umar Farooq on Tuesday sent an SOS letter to Pope Francis in Vatican, the Dalai lama, Imam Kaba,Shankrachrya and ambassadors of various countries in New Delhi, UN, EU and OIC regarding the “urgent and grave situation in J&K.”Over 77 people have died in forces’ action on protests that erupted after the killing of young militant commander Burhan Wani on July 8.