A Syrian activist group says that 815 people have been killed in the fight for control over the Syrian border town of Kobani in the past 40 days.

 The monitoring group, Britain-based Syrian Observatory for Human Rights, said that while the Islamic State group lost 481 militants in the fighting, 21 Kurdish civilians and 302 Kurdish fighters were killed since the battle began.

More than 200,000 people have crosses into Turkey as a result of the attacks launched by the Islamic State militants in mid- September. The militants have captured vast swathes of land in Syria and Iraq and fierce fighting is going on between the militants and the Kurdish fighters over the Syrian border town of Kobani.

The U.S. officials warned last week that though the chances of the Islamic State militants capturing the Syrian border town of Kobani were less, it might still fall to the militants. 

The Observatory said that Islamic State militants suffered casualties on Sunday as fighters of YPG, the main Kurdish force fighting against the Islamic State militants, attacked two Islamic State vehicles in Kobani.

In another attack, the Islamic State militants in the northern Syrian city of Aleppo fired two mortal shells Sunday, which resulted in the death of an adult and a child while also wounding several people, reports the Associated Press citing state news agency SANA.

One of the shells hit the Hoda Shaarawi school, another one fell in front of it, the Observatory said.

Meanwhile, an Iraqi Kurdish spokesman said Sunday that Iraqi Kurdish forces will not engage in ground fighting in the Syrian town of Kobani but will provide artillery support for fellow Kurds fighting against the Islamic State militants there.

"Primarily, it will be a back-up support with artillery and other weapons," Kurdistan Regional Government (KRG) spokesman Safeen Dizayee said. "It will not be combat troops as such, at this point anyway," he said, reports Reuters.