Gunmen attacked a tourist vehicle in a game reserve in northern Kenya on Friday, killing the driver and wounding a foreign tourist. It was the third attack on tourists in the east African country in two months.

Police and a game ranger in the town of Isiolo said gunmen fired at the vehicle in the Shaba National Reserve, just over 300 km (188 miles) north of the capital Nairobi.

One of the tourists was shot. The vehicle rolled and his colleague sustained injuries, Eastern Province Police Commander Marcus Ochola told Reuters.

The area has a number of well-known game reserves and national parks including Samburu and Buffalo Springs, and is known for banditry.

There have also been frequent clashes between pastoralists this year near Isiolo, a region hit by drought, but police ruled out any link to those conflicts.

This incident is not related to the recent fighting between the pastoralists around Samburu. The tourist police and other security agents are pursuing the attackers, Ochola said.

Tourism is one of the leading foreign exchange earners for Kenya, which has the biggest economy in the region.

The game ranger in Isiolo, who declined to be named, told Reuters the couple were staying at a lodge in the Shaba reserve and their vehicle came under fire as they were returning from a game drive.

The recent attacks on tourists and the kidnapping of Western aid workers near the border with Somalia were cited by Kenya as one of the reasons it sent troops into its neighbour last month to fight al Shabaab rebels.

A British man was killed and his wife abducted from a beach resort in northern Kenyan on September 11. The gunmen fled to Somalia where the woman is still being held hostage.

A French woman was kidnapped from the nearby northern resort town of Lamu three weeks later and taken to Somalia. She subsequently died. Two Spanish aid workers were kidnapped from the Dadaab refugee camp later in October and taken to Somalia.

(Additional reporting by David Clarke in Nairobi; Editing by Robert Woodward)