DUBAI, United Arab Emirates (AP) — Iran on Tuesday denounced the most recent U.S. strikes as a sign of “bad faith and unreliability” as negotiations pressed on toward a possible deal to end the war, and the Islamic Republic began restoring internet access after one of the longest nationwide shutdowns ever.

The U.S. military characterized Monday’s strikes in southern Iran as defensive, saying targets included missile launch sites and minelaying boats, and said the U.S. acted with “restraint” in light of the weekslong ceasefire.

Iran’s foreign ministry called the strikes a ceasefire violation and warned that Washington would bear responsibility for “all consequences,” without elaborating.

“The Islamic Republic of Iran will leave no act of aggression unanswered,” it added in a statement.

Iran’s Revolutionary Guard said Tuesday that it shot down at least one drone and deterred another drone and a fighter jet that entered its airspace, according to Iran’s official Mizan news agency. It didn’t specify when the incidents occurred.

Iran’s supreme leader, Mojtaba Khamenei, used a statement about Islam’s annual Hajj pilgrimage to address his country’s confrontation with the U.S. and Israel, declaring that other Mideast nations “will no longer serve as a shield” for U.S. military bases. Iran has previously complained about U.S. military facilities in the region and targeted them.

It was not immediately clear what the developments would mean for negotiations.

Iranian state TV reported Tuesday that Iranian Parliament Speaker Mohammad Bagher Qalibaf and Foreign Minister Abbas Araghchi left Qatar, where talks had been taking place. The report did not elaborate or point to any next steps.

U.S. Secretary of State Marco Rubio projected that talks on extending the ceasefire and reopening the crucial Strait of Hormuz will “take a few days.”

Meanwhile, Iranian authorities eased a monthslong internet shutdown that they cast as a wartime necessity, but that has cost the country’s economy an estimated $30 million to $40 million a day. Internet users reported that access was gradually being restored, at least in some places. State media said fixed broadband service was back. It was unclear when mobile internet would be widely restored.

Iran has long enforced filters and policed content on platforms such as YouTube and Instagram. But before the war, Iranians could bypass restrictions with cheap virtual private networks, known as VPNs, and other easy workarounds.

Authorities cut off internet access in January during massive anti-government demonstrations and later began to relax those restrictions before imposing a complete internet blackout after the U.S. and Israel attacked on Feb. 28.

The internet outage made it difficult for Iranians outside the country to maintain contact with loved ones, and the lack of connectivity devastated the country’s relatively vibrant online businesses, putting further pressure on an already battered economy.

In other developments, Iran hanged a man it convicted of spying for Israel, the latest of more than two dozen allegedly espionage- and security-related executions since the war intensified a crackdown on dissent.

The Iranian judiciary’s news outlet, Mizanonline, identified the man as Gholamreza Khani Shakarab, calling him “a ringleader” for operations for Israel’s intelligence agency, the Mossad, and accusing him of recruiting members inside and outside Iran to work against the nation’s security.