Explosions in booby-trapped radios and pagers in Lebanon this week seriously disrupted its fragile health sector, the World Health Organization chief said on Thursday.

The World Health Organization announced that the explosions of pagers and other wireless communication devices in Lebanon this week have led to a "severe disruption" in the country's already fragile healthcare sector.

A series of booby-trapped explosions in Lebanon this week severely disrupted its vulnerable health sector, resulting in 37 fatalities and over 3,000 injuries. The World Health Organization (WHO) has responded by distributing blood supplies and trauma kits.

A Lebanese official said pagers belonging to Hezbollah militants had exploded, causing a large number of injuries. The Israeli military declined to comment.

At least 100 Hezbollah targets have been destroyed in the Israeli military’s most extensive airstrikes on southern Lebanon since the start of the war in Gaza.Israel said it had hit Hezbollah’s rocket launcher barrels and other sites across the region after around 9pm on Thursday amid fears of a major conflict.

By Laila Bassam and Maya Gebeily BEIRUT (Reuters) -Hand-held radios used by Hezbollah detonated late on Wednesday afternoon across Lebanon's south and in Beirut's southern suburbs, a security source and a witness said,