ANKARA, Nov 16 (AFP) - One person was killed and 15 injured in the mainly Kurdish province of Hakkari in southeastern Turkey on Wednesday in flaring violence between Kurdish protestors and the security forces, Anatolia news agency reported.

The protestor died while on his way to hospital after sustaining serious injuries during a demonstration in Hakkari city to condemn a deadly bomb attack in a nearby town last week, widely blamed on members of the security forces, Anatolia quoted unnamed officials as saying.

The death brings to five the number of people killed in almost daily riots since the November 9 bombing of a bookstore in Semdinli owned by a former Kurdish guerrilla.

Five policemen and 10 protestors were injured in the unrest, which saw the security forces use tear gas and fire shots in the air to disperse the crowd, Anatolia said.

Three people were killed in clashes in Yuksekova town, also in Hakkari province, on Tuesday.

Another person was shot dead in riots that broke out after the bombing in Semdinli, when an angry crowd almost lynched three people suspected of carrying out the attack.

One of them, who allegedly hurled the bomb and was later arrested, turned out to be a former Kurdish guerilla working as an informer for the gendarmerie, an army unit policing rural areas.

The two others -- both gendarmerie officers -- were set free, while a third soldier, accused of firing at the crowd, was also arrested.

Prime Minister Recep Tayyip Erdogan urged calm in the region, renewing a pledge that those responsible for the bombing would be punished.

"No action outside law is acceptable," Erdogan said after a meeting of his party leadership to discuss the incidents.

"We are aware how sensitive our citizens are on this issue and we are determined to shed light on it," he said. "Our citizens should be patient until the legal procedures are completed."

Erdogan claimed the rebel Kurdistan Workers' Party (PKK), which has fought the Turkish government since 1984, was fuelling unrest in the region through "a disinformation campaign" over the Semdinli bombing.

The Kurdish conflict in Turkey has claimed some 37,000 lives since 1984 when the PKK, blacklisted as a terrorist group by Ankara as well as the European Union and the United States, took up arms for Kurdish self-rule in the southeast.