Taliban gunmen in the Northwestern City of Peshawar, Pakistan took hundreds hostage on Tuesday in a school

HOT NEWS: Taliban gunmen stormed a military school in the northwestern city of Peshawar on Tuesday, Pakistani officials said.

At least twelve people have been killed and 40 wounded, according to hospital officials.

Teachers says that nearly 1500 students could be inside the school.

Reports say 5 students have been killed and 45 injured in the attack.

Meanwhile, some media reports from out of Pakistan says at least 12 students have been killed, all boys.

One of the wounded students, Abdullah Jamal, said that he was with a group of 8th, 9th and 10th graders who were getting first-aid instructions and training with a team of Pakistani army medics when the violence began for real.

wiki Attacks on Peshawar School Today December 16 2014

When the shooting started, Jamal, who was shot in the leg, said nobody knew what was going on in the first few seconds.

Pakistani television showed soldiers surrounding the area and pushing people back.

Details were sketchy in the unfolding situation and it was unclear what was going on inside the school and if there were any hostages among the students.

Taliban spokesman Mohammed Khurasani claimed responsibility for the attack in a phone call to media.

"It's a revenge attack for the army offensive in North Waziristan," Mohammed Khurasani said, referring to an anti-Taliban military offensive that began in June.

Peshawar has been the target of frequent militant attacks in the past.

Peshawar is the capital of Khyber Pakhtunkhwa (formerly called the North-West Frontier Province), and the administrative centre and economic hub for the Federally Administered Tribal Areas of Pakistan.

Peshawar is the major educational, political, and business center of Khyber Pakhtunkhwa.