Iran’s chief negotiator warned on Sunday that an Israeli strike on south Beirut and the continuing US blockade of Iranian ports would trigger retaliation.Israel struck Beirut’s southern suburbs without warning on Sunday, days after a ceasefire agreement in Washington went into effect and despite a US request not to attack Lebanon’s capital. Lebanon’s state-run national news agency said two people were killed and 11 wounded in a preliminary count.Iran had warned that an attack on Beirut would renew full-scale war across the Middle East, even as Pakistan tries to restart talks between Tehran and Washington. Iran wants a deal to...