A smuggling tunnel from Gaza to Sinai collapsed under the border city of Rafiah at the southern end of the Hamas-run enclave, killing one.
Medical sources in Gaza told the Palestinian Authority affiliated Maan News Agency that that Faraj Abu Mustapha, 28, was working in the tunnel at the time of the collapse.
The sources say Abu Mustapha was involved in smuggling cement into Gaza, but their claim was not confirmed.
The tunnels are a key supply line for Hamas and its terror confederates who have smuggled tens of thousands of rockets, as well as firearms, ammunition, and explosives into Gaza via the tunnels.
They have also served as a means of moving terrorists planning on staging attacks in the Sinai and southern Israel to and from the coastal enclave.
Egypt opened the Rafiah crossing in May 2011, the only border terminal not controlled by Israel, but it is frequently closed and remains tightly controlled.
According to the sources say over 160 Gaza residents have died in the network of underground tunnels since Israel since 2006.
The terror tunnels are a frequent target for IAF retaliatory raids after attacks on Israel's southern communities by terrorists in Gaza.