27,000 foreign fighters in Iraq, Syria: About  27,000 jihadist fighters from 86 countries have travelled to Iraq and Syria since last year,  The Soufan Group, an intelligence consultancy, said in its new report on Tuesday.

The figure has more than doubled since the group's last report in June 2014, when it had stated that there were 12,000 foreign fighters in the two countries. 

Adding to security concerns globally, the agency said that nearly 20 to 30% of these foreign fighters were returning from war zones to their home countries, AFP reported. 

Isis 'spy planes' shot down in Iraq: Iraqi officials claimed to have shot down two spy planes belonging to the Islamic State in  Haditha and Bruwana districts near Ramadi.

"The ISIS organisation had tried to find out the whereabouts of the security forces in those areas through those two planes," an official told IraqiNews.com. 

The news site said that 'dozens of ISIS elements' had been killed in an aerial bombing by the coalition forces in northern Ramadi.

Air France flight to Paris diverted after 'bomb threat': An Air France flight from San Francisco to Paris was diverted to Montreal in Canada on Tuesday after an alleged bomb threat. The passengers were evacuated safely.

The airline called the diversion a ' precautionary measure'. 

The incident comes a month after two Air France flights from the United states to Paris were diverted following anonymous threats.

Isis calls Afghan Taliban 'deviant group' in new video: The Islamic State's wing in Afghanistan, Wilayat Khurasan, has released a new video in which it has called the Afghan Taliban a 'deviant group' and accused it of working with Pakistan's ISI military intelligence. 

The Taliban and Isis have been engaged in a turf war in Afghanistan, primarily a stronghold of the former.

In June this year,  Isis fighters beheaded ten Taliban fighters in Afghanistan's Nangarhar province.

US unveils new terror alert system: The Homeland Security department in the US has announced a new system to alert citizens of terror threats even if authorities do not have credible information of an impending attack.

The new system will replace the National Terror Advisory System, which had in turn replaced the color-coded threat-level system brought in after the 9/11 attacks. 

"We need a system that adequately informs the public at large, not through news leaks...We need a system that informs the public at large what we are seeing," Homeland Security Secretary Jeh Johnson said on Monday, according to the The Wall Street Journal. 

He said he will announce more details in the coming days.

California shooter Tashfeen Malik attended religious school in Pakistan: Tashfeen Malik, the Pakistani woman who is one of the suspects in the San Bernardino shooting along with her husband Syed Farook, had reportedly attended the  Al-Huda Institute, a conservative religious school in Pakistan. 

The institution is also connected to 4 Canadian women who joined Isis, as they all had reportedly taken classes at the Al-Huda's branch in Mississauga in Canada before they left the country for Syria. 

Isis smuggling oil through Turkey, says Iraq: Joining Russia's accusations against Ankara of colluding with the Islamic State for oil trade, Iraqi Prime Minister Haider al-Abadi said that Isis was smuggling most of its oil through Turkey. 

Abadi's comment came during his meeting with Germany's Foreign Minister Frank-Walter Steinmeier in Baghdad. 

(With agency inputs)