At least 492 people have been killed in intense and wide-ranging Israeli air strikes targeting Hezbollah in Lebanon, the country’s health ministry says, in the deadliest day of conflict there in almost 20 years.

Thousands of families have also fled their homes as the Israeli military said it hit 1,300 Hezbollah targets in an operation to destroy infrastructure that the armed group had built up since the 2006 war.

Hezbollah, meanwhile, launched more than 200 rockets into northern Israel, according to the military.

Paramedics said two people were injured by shrapnel.

World powers have been urging restraint as both sides appear to be spiralling closer towards all-out war.

Lebanon’s health ministry said 35 children and 58 women were among the dead, while 1,645 others had been wounded.

It did not report how many of the casualties were civilians or combatants.

Health Minister Firass Abiad said thousands of families had also been displaced by the strikes.

UN Secretary General António Guterres expressed alarm at the escalating situation and said he did not want Lebanon to “become another Gaza”.

EU Foreign Affairs Chief Josep Borrell said the “escalation is extremely dangerous and worrying” ahead of a gathering of world leaders at the UN in New York, adding “we are almost in a full-fledged war”.

President Joe Biden said the US was “working to de-escalate in a way that allows people to return home safely”, while the Pentagon announced it was sending “a small number” of additional troops to the Middle East “out of an abundance of caution”.