ISTANBUL An explosion that rocked Turkey's southeastern city of Diyarbakir and wounded several people on Tuesday occurred during the repair of a vehicle, Interior Minister Suleyman Soylu said.
Soylu's comments were broadcast live by CNN Turk. A police source said the explosion appeared to have taken place in a vehicle repair section of a police compound, causing part of the roof to collapse and wounding at least four people. The Dogan news agency said one was in critical condition.
The blast comes ahead of a hotly contested referendum on Sunday on broadening President Tayyip Erdogan's powers, a constitutional change opposed by many in the country's predominantly Kurdish southeast.
(Reporting by Daren Butler; Writing by David Dolan; Editing by Dominic Evans)