Multiple explosions have been reported across Iran’s capital, Tehran, and other cities as United States-Israeli attacks and Iranian retaliation continue.

As the conflict saw its 13th day on Thursday, Iran’s representative to the United Nations, Amir Saeid Iravani, said at least 1,348 civilians have been killed.

The humanitarian toll continues to mount with more than 17,000 injured in Iran since the US and Israel launched their war on February 28. UNICEF described the situation as “catastrophic”, noting that more than 1,100 children have been reported injured or killed.

The Office of the UN High Commissioner for Refugees (UNHCR) estimated that up to 3.2 million people have been displaced within Iran since the conflict began. “This figure is likely to continue rising as hostilities persist, marking a worrying escalation in humanitarian needs,” UNHCR said in a statement.

Meanwhile, in Lebanon, Israeli attacks since March 2 have killed at least 687 people, including 98 children, according to Information Minister Paul Morcos.