Police attempting to keep a restless crowd from entering a capacity-filled stadium fired their guns into the air on Sunday while Afghan President Hamid Karzai quickly wrapped up his speech inside, a military official said. There were no immediate reports of injuries, and a government official said Karzai was not harmed. The sound of what appeared to be gunfire rang out as Karzai abruptly ended his speech, sending a murmur through the crowd and prompting some in the audience to start to flee. Officials told the crowd to remain calm and said someone had thrown stones against a metal door. Full Story