A senior Egyptian prosecutor has ordered a probe into the collapse of parts of a bridge in the governorate of Sohag, in Upper Egypt.
Parts of the newly-constructed University Bridge crumbled on Wednesday, leaving no casualties.
Photos and videos circulated online showed a gaping cavity and huge cracks extending some 60 metres along the bridge.
Top administrative prosecutor Sameh Kamal ordered on Thursday an investigation into the incident, a prosecution statement said.
The bridge was built early last year under the supervision of the country's development and housing authority.
The provincial governor has referred the company that carried out the construction work to prosecutors for questioning.
Egypt is notorious for its poorly maintained roads and inadequate traffic safety standards that have largely contributed to near daily road crashes that claim thousands of lives every year.
The bridge was built to provide a link to the new headquarters of Sohag University.
Ten students were killed in November 2014 when a van carrying them to the university fell into a sluiceway.
The university administration had suspended studying at the new location following the accident until officials ensure the safety of the surrounding roads.
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