Iran test fired cruise missiles in a naval exercise in the Gulf of Oman and northern Indian Ocean, state media reported on Thursday.

The report by the official IRNA news agency said the missiles destroyed targets at a distance of 280 kilometers. It said the tests took place during a naval drill by Iran’s Navy in the Gulf of Oman and Indian Ocean.

IIRNA said the missiles’ range can be extended but gave no details.

The news agency said two kinds of missiles were fired, without elaborating, and broadcast images of projectiles being launched from both a truck and a ship, hitting a buoyant target in the sea.

Iran’s Navy Chief Admiral Hossein Khanzadi told Press TV that the “homing” c-class cruise missiles have new warheads that can hit targets with high accuracy at a close distance. He said the missiles are capable of resisting “any kind of electronic war”.

“The important point about these missiles is that they are fully equipped with homing,” Khanzadi said.

Homing is a missile guidance system in which the missile has all necessary electronics for tracking and hitting a target.

“It means they are of the fire-and-forget type. We fire the missile and the data is on the missile itself, it has various navigation systems built-in,” Khanzadi said.

The report was the first of a drill since May, when a missile fired during an Iranian training exercise mistakenly struck an Iranian naval vessel instead of its intended target in waters near the strategic Strait of Hormuz, killing 19 sailors and wounding 15 others.

It also comes after a tense naval encounter between Iranian and US forces in the nearby Persian Gulf.

In April, the United States accused Iran of conducting “dangerous and harassing” man oeuvres near American warships in the northern Persian Gulf. Iran also was suspected of briefly seizing a Hong Kong-flagged oil tanker before that.

Iran regularly holds exercises in the Gulf of Oman, which is close to the Strait of Hormuz, the narrow mouth of the Persian Gulf through which 20% of the world’s oil trade passes.

The US has been actively campaigning to keep a United Nations arms embargo in place on Iran which is due to expire in November.

President Donald Trump withdrew the US from Tehran’s nuclear deal with world powers two years ago, launching a maximum pressure campaign against Iran.