Ibrahim Balde, who survived the collapse of a four-storey building under construction by leaping from the side when it started to shake, watches as rescuers dig through rubble in search of workers who may be still alive trapped in the rubble, in Dakar, Senegal, Friday, March 8, 2013. Balde's friend and coworker, who had switched duties with him that day, was later pulled dead from the rubble. Omar Samb Gueye, the local chief of the Ouakam area where the building was being constructed, said two people were killed and two injured when the building folded in on itself and collapsed in Senegal's capital, Dakar. He said the building was being constructed twice as tall as the two-storry height for which it had been authorized.(AP Photo/Rebecca Blackwell), APTOPIX