Iran's Islamic Revolutionary Guard Corps (IRGC) is developing biological and chemical warheads for the country's long-range ballistic missiles, informed military sources told the Iran International news website on Sunday.

The sources, who requested anonymity due to the sensitivity of the matter, told the site that the IRGC Aerospace Force is working on the unconventional warheads for ballistic missiles as it transfers missile launchers to eastern regions of Iran. They added that these activities have accelerated in recent months and are being pursued amid rising regional tensions and Tehran’s concerns about the possibility of another direct confrontation with Israel and the United States.