Iranian security forces are on high alert after Israel has carried out a series of coordinated attacks on Iran, targeting multiple locations which has killed at least 78 people and injured 329. br br Iran called Israel's wave of strikes on Friday a declaration of war, while US President Donald Trump warned Tehran of "even more brutal" attacks if it does not make a deal on its nuclear programme.br br The new head of the Revolutionary Guards,Mohammad Pakpour, has promised Israel "the gates of hell" and "destructive consequences" after strikes against Iranian territory. br br Ehsan Keivani reports for CGTN from Tehran.