An explosion at the U.S. embassy in Oslo, Norway, early Sunday morning is under investigation as a potential act of terrorism. Authorities suggest that the incident may be a deliberate attack possibly connected to the ongoing situation in Iran.

“Given the current security climate, it’s reasonable to consider this as a possible targeted attack on the U.S. embassy,” stated Frode Larsen, the head of the Oslo police investigation unit, during a press briefing.

Larsen further elaborated in an interview with public broadcaster NRK, saying, “While one of our main hypotheses points to terrorism, we are also keeping other possibilities in mind.”

With contributions from Post correspondents