From an eye witness (pilot on the ground at the time)
They touched down hard then aborted the landing which lead to a go around. They were in the process of a go-around (configuration) but it sank back on the runway. Maybe that's why the landing gear appears to be up as it skidded on the ground. It most probably sank/fell back onto the runway due to extreme weather (temperature, low pressure/the gear doors opening/then closing i.e: increased drag) and that the B773 performance struggles at that those conditions. Look at FCOM2 for the 773.
There is discussion about possible windshear. Wind direction may not justify that but when EK aircraft land behind each other at Dxb they have an amended approval of 3nm separation to help aliviate congestion. An agreement between EK and the airport authority. Could this contribute? Did an EK aircraft land infront? Many questions but all will be answered.
Thankfully no lives lost.
Captain - local
F/O - Australian