A large, long-range drone hit the centre of Tel Aviv, in an attack claimed by Houthi militia that killed one man and slightly wounding four others, the Israeli military and emergency services said, Reuters reports.

The explosion, which did not trigger air raid alarms, occurred hours after the Israeli military confirmed it had killed a senior commander of Hezbollah militia in southern Lebanon.

“We’re talking about a large UAV (Unmanned Aerial Vehicle) that can fly large distances,” an Israeli military official told journalists after the strike. The official did not confirm the claim from the Yemen-based Houthi militia but said: “We’re not ruling out any possibilities right now.”

The Israeli official said the military was still investigating why the drone did not trigger the alarm, but initial reports suggested the drone was identified but the sirens were not sounded due to human error.

The military said air patrols had been increased to protect Israeli airspace but said it had not ordered new civil defence measures, however the mayor of Tel Aviv said the city, Israel’s economic centre, had been moved to a state of heightened alert.