LUCKNOW, India—Some of the 40 construction workers trapped in a collapsed road tunnel for a fourth day were getting sick as falling debris and technical glitches delayed the work to free them, officials in northern India said Wednesday.
Rescuers have been trying to drill wide pipes through excavated rubble to create a passage to free the workers trapped since Sunday after a portion of the under-construction road collapsed in mountainous Uttarakhand state. But the government-run national highway authority said that the process was slower than expected and that another high-power drilling machine was being airlifted from New Delhi to be used as soon as possible.
