EDSA Magallanes Bus Accident killed 6, injured many [Photos]

A bus accident took place in EDSA (Magallanes, Makati City) early this morning, involving 2 buses - Elena Liner Bus (TXN 191) and MGP Trans bus (NXV 350).
Reports say, at least 6 people died while more or less 30 were hurt in the accident. Apparently, the Elena Liner Bus rear ended the MGP Trans bus sending to hit the loading bay nearby, hitting several people standing by.

Here is a report from Dexter Ganibe, on field, aired on DZMM Teleradyo with anchor Ted Failon:
Five (5) died on the spot while the other one passed away in the hospital while being treated, said the doctor from Ospital ng Makati who rushed to the scene.

Update: A screen grab from a Youtube video uploaded by 中文特里:

Alot of the passengers sustained bone fractures. GMA News has the figure at 33 while ABS CBN news said, injured persons are 29. Whatever the real count is, that's still a lot of people hurt.

Makati City police chief Senior Superintendent Manuel Lukban Jr. said in his dzBB radio interview:

Lima ang nasawimpalad dito, apat na lalaki at isang babae (Five were killed here, 4 males and 1 female)," Lukban said in an interview on .

Who's at faul in this very unfortunate scene in EDSA? Drivers' error? Bus deficiency? or maybe the operators? How about the road facilities and the road traffic administrators / enforcers? Let's see what comes out. (Image: http://www.abs-cbnnews.com/)