TOPSHOT - Sri Lankan firemen and rescue workers look for survivors after a seven-story building collapsed during construction in Colombo on May 18, 2017.
A multi-storey wedding venue collapsed May 18 during construction in Sri Lanka, injuring at least 20 workers and leaving three others missing, police and hospital officials said. Labourers were working on the roof of the grand seven-floored structure in Colombo when it came crashing down, pinning tradesmen beneath falling slabs of concrete. / AFP PHOTO / LAKRUWAN WANNIARACHCHI        (Photo credit should read LAKRUWAN WANNIARACHCHI/AFP/Getty Images)