Two labourers were killed in separate accidents at the construction site of SBUT cluster project in the Bhendi Bazaar area of south Mumbai, police said on Tuesday. Both accidents occurred on Monday afternoon and cases of accidental death have been registered in both the incidents, an official said. The Saifee Burhani Upliftment Trust (SBUT) is carrying out the metropolis' largest cluster redevelopment project spread over 16.5 acres in Bhendi Bazaar.