Egypt has condemned the killing of three Egyptian policemen by Israeli soldiers on the border between Egypt and the Gaza Strip.
The Israeli army says a tank crew mistook the Egyptians for Palestinian militants and opened fire. The Israeli army expressed regret for the killing. Israeli officials also apologized and have started an investigation.
The shooting occurred early Thursday in an area where Palestinian militants have smuggled arms into Gaza from Egypt.
Hours later in the same area, Israel said a Palestinian weapons smuggling tunnel collapsed, burying an unknown number of people. Israel said it was working with Palestinian rescue teams to dig out those trapped underground.