Indian embassy in Israel has offered condolences to the 21 soldiers killed in the worst single day loss for Tel Aviv in Gaza combat. The embassy claimed that one soldier among them, 23-year-old Hadar Kapeluk, had served as one of its security personnel in India. The soldiers were killed after two buildings collapsed following an explosion. Hamas fighters reportedly targeted a Merkava tank with RPG fire. The buildings reportedly collapsed as the explosives laid inside them by Israeli soldiers caught fire. Al Jazeera caught the moments after the massive blast on live TV. Watch this video for more details.