New Delhi, July 10 -- Fresh explosions were reported across southern Iran on Thursday as the United States carried out a third consecutive day of military strikes, further escalating tensions with Tehran and raising fears that a fragile ceasefire has completely collapsed.

Iran's Mehr news agency reported that at least six explosions were heard in Bushehr and Choghadak, while blasts were also reported in Konarak. Bushehr is home to Iran's only civilian nuclear power plant.

The latest strikes came as Iran prepared to bury former Supreme Leader Ayatollah Ali Khamenei in the holy city of Mashhad following six days of funeral ceremonies. Khamenei was killed in the opening phase of the US-Israeli military campaign against Iran on February 28....