Multiple aid workers were killed after a bus was attacked in Gaza on Wednesday night, according to a US-backed humanitarian aid organization which accused Hamas of carrying out the assault.

At least eight Palestinians who worked for the U.S-backed Gaza Humanitarian Foundation died in an ambush, the GHF said on Thursday, blaming Hamas militants for the killings that rocked the troubled food distribution operation.

Internet and landline services were also cut off in the enclave after key telecommunications infrastructure was damaged, according to a Palestinian ministry.