2 explosions heard near Istanbul soccer stadium; 20 wounded

Two explosions hit Saturday night near a major soccer stadium in Istanbul, and Turkish authorities say about 20 police have been wounded.
Witnesses said police were deployed and had cordoned off the area as smoke rose from the newly built Besiktas Stadium. They said gunfire could be heard in what appeared to have been an armed attack on police.
The private NTV channel said the target of the attack was a bus for riot police.
Turkey’s Interior Minister Suleyman Soylu gave the casualty toll a