Iran had formally filed a complaint to the UN Security Council over a US drone it claimed had violated its airspace, according to the report.

Tasnim news agency quoted deputy foreign minister Gholamhossein Dehghani as saying that Iran “filed a complaint to the UN Security Council and the organisation’s Secretary General after a US spy drone violated Iran’s airspace and was shot down.”

“The complaint states that Iran reserves the right to defend its airspace and confront any violation,” he added.

According to reports, Iran had filed a complaint to UN Secretary-General Antonio Guterres over the incident.

Tensions spiked last week when Iran shot down a US drone over sensitive Gulf waters following a series of oil tanker attacks that Washington blamed on Tehran, which the later has denied.

Iranian President Hasan Rouhani also blamed the US for regional tensions and said that if Washington had stuck to the deal “they would have witnessed positive developments in the region”.