A month since the Can Tho Bridge collapsed, investigators are still unable to uncover the disaster’s causes, said a National Investigation Committee spokesperson Tran Chung Wednesday.

The deadline for the investigation’s reports, as requested by Prime Minister Nguyen Tan Dung, has come and gone but the Committee says it is still working on the case.
Criminal Science Institute Vice-Head Pham Ngoc Hien told reporters investigations into the quality of materials for building supporting pylons, scaffolds and foundations have yet to be completed.
Meanwhile, the project’s Japanese contractors and the My Thuan Project Management Unit have yet to provide their full reports on their tests of foundations.
Mr. Hien said he suspected methods of construction and supervision could have contributed most to the accident.
Japanese contractors are awaiting four laminators to be brought to the site to cut two huge slabs of concrete to replace the collapsed spans and remove wreckage, as they agreed to do for Viet Nam’s Ministry of Transport.
The work is expected to last up to 34 days and nearby residents will have to be evacuated from the area.
Mr. Hien said investigators will continue to collect material evidence while cleaning up the site with the help of the Vinh Long provincial police.