In the coastal town of Nahariya, less than 10 kilometres (six miles) from Israel's northern border with Lebanon, the Magen David Adom emergency service said it treated a woman approximately 20 years old "in mild condition with a head injury from debris thrown by the blast", following rocket fire.

Paramedics also treated a 46-year-old man in the south of the country who was "in mild condition with injuries to the upper limbs from interceptor debris", as well as a 36-year-old man in the north "with a shrapnel injury to his lower limbs".

The three were evacuated to hospitals, Magen David Adom said.

As of 5:10 pm (1410 GMT), the Home Front Command had registered more than 20 alerts since midnight warning of projectiles fired from Lebanon, where Israeli forces are fighting Iran-backed Hezbollah.

The Israeli military also warned four times of ballistic missile fire from Iran.

Israeli military correspondents have reported that, on average, there have been around one or two missiles per alert in recent days.

The Middle East was plunged into a spiralling war after the US and Israel launched joint strikes on Iran on February 28, sparking retaliatory attacks across the region.