Albert Barnes Commentary Exodus 14:11

"And they said unto Moses, Because there were no graves in Egypt, hast thou taken us away to die in the wilderness? wherefore hast thou dealt thus with us, to bring us forth out of Egypt?" — Exodus 14:11 (ASV)

No graves in Egypt - This bitter taunt was probably suggested by the vast extent of cemeteries in Egypt, which could rightly be called the land of tombs.