The Russian fighter jet "performed aggressive and dangerous maneuvers" toward a Polish aircraft, Warsaw said. The incident over the Black Sea caused Polish pilots to temporarily lose control of their plane.

After taking power in August, the Taliban now need to put in place a functioning state in Afghanistan. Official declarations and policies are scarce for now, but no doubt the most tangible sign of the Taliban takeover are the security patrols of thousands of former fighters who have poured into the capital. They're now police officers who are enforcing a strict interpretation of Sharia law. Our reporters Catherine Norris-Trent and Roméo Langlois were able to follow Taliban fighters on patrol in Kabul and also gain access to a hearing of an Islamic court.

Singapore has trialled patrol robots that blast warnings at people engaging in "undesirable social behaviour", adding to an arsenal of surveillance technology in the tightly controlled city-state.

Taliban patrols are a common sight in Kabul streets as crowds of Afghans continue with their commute and buying groceries, a day after the Islamists celebrated the US military withdrawal as a victory.

It's a neighbourhood watch with a difference. A clean-nosed crew, sniffing out trouble and keeping the streets safe for school kids: meet the pups of Tokyo's Wan Wan patrol.

The rainy season is the best time to grow rice and corn in Borno, one of Nigeria's agricultural regions. But farmers are frequently targeted by Boko Haram attacks. In a bid to improve security in the region and reassure farmers, teams of so-called "Agro Rangers" were set up a year ago by authorities. The men, who are often volunteer militia or hunters, are recruited by the Nigerian civil defence. Our correspondent Moïse Gomis went on patrol with them on the outskirts of Maiduguri and elsewhere in Borno.

Lisbon is home to thousands of feral cats, as well as many rats. The city has begun relocating the felines to known "rodent hotbeds," where it plans to send them out on rat patrol.

The UK is withdrawing patrol ships from overseas to deal with a surge in crossings of the English Channel. Opposition politicians accuse the government of pumping up the issue for political gain.

Sacramento police are mourning the loss of Highway Patrol officer Lucas Chellew who died when he lost control of his motorcycle while pursuing a suspect.

Eight asylum-seekers, including four children, barely made it across the Canadian border on Friday as a U.S. border patrol officer tried to stop them.