Vinay Chand, a district government administrator, said most of the victims were contract laborers. Five workers were hospitalized with injuries, he said, adding that the Crane collapsed on workers who were working on it or standing nearby.
The cause of the accident is being investigated, Chand said.
Vishakhapatnam is 620 kilometers (385 miles) east of Hyderabad, the state capital.
In another accident in the port city in May, a gas leak in a South Korean-owned chemical factory killed 12 people and sickened more than 1,000.