ANKARA, July 27 (Xinhua) -- Istanbul Governor Muammer Guler said 13 people were killed and some 140 others wounded in twin bomb explosions in Turkish largest city of Istanbul late Sunday.

    The twin blasts in the Gungoren district of Istanbul have been labelled as "terror attack" by the government, said Turkish private NTV, adding that the casualties are expected to continue to rise.

    The report quoted Guler as saying that bombs were placed in garbage cans and exploded in the busy shopping area where a lot of people were walking at the summer weekend.

A women, who was injured in a bomb blast, embraces her child as she is taken into an ambulance in Istanbul July 27, 2008. 13 people were killed and some 140 others wounded in twin bomb explosions in Turkish largest city of Istanbul late Sunday.

    The NTV showed ambulances were carrying seriously wounded people to hospitals nearby after the explosions at two different sites.

    The victims were killed by the second explosion after a small explosion in a telephone booth brought people out to the street, the report added.