Driverless buses take to the roads in Estonia's capital

Driverless buses in Estonia have had a number of close calls, including ignoring a speeding police car's emergency lights. The vehicles were introduced in the capital Tallinn in recent weeks as part of the Baltic state's presidency of the European Union. Eyewitnesses have reported a few near misses since, including ignoring a red light, but no'major incidents'. Driverless buses in Estonia (pictured) have had a number of close calls, including ignoring a speeding police car's emergency lights Tallinn is the first city in which driverless buses will come in direct contact with live traffic, according to reports from state broadcaster ERR. A number of similar trial schemes have already been tested around the world.