Iran launched a barrage of missiles at Israel on Tuesday in response to the killings of Iran-backed militant leaders, sending Israelis to shelters and prompting alarm across the region. Reports said between 150 and 200 missiles had been fired in the attack. Iran's elite Revolutionary Guards said on Tuesday that they launched tens of missiles toward Israel and warned that if Israel retaliated, Tehran's response would be 'more crushing and destructive', Iranian state TV reported. Israel vowed to retaliate following the Iranian missile attack.