A police official in the eastern Pakistani city of Lahore says four explosions in a red-light district have caused minor injuries.
Muhammad Shafique said the blasts Friday night were low-intensity and authorities were still collecting information. It was not immediately clear who was responsible.
Local television reported two or three people were hurt. The blasts happened in an area of the old walled city known for housing brothels.
Lahore is considered by many to be Pakistan's cultural capital. It has been increasingly targeted by Islamic militants.