KABUL, Afghanistan - On a day that Islamic scholars gathered in Saudi Arabia to discuss the legitimacy of Talibans war against the U.S.-backed government of President Ashraf Ghani - the war torn country witnessed two separate militant attacks.

Two terror attack in Afghanistan on Tuesday left over 15 people killed.

According to officials, in one of the attacks, a suicide bomber detonated explosives near a government security checkpoint on the outskirts of the eastern city of Jalalabad.

Provincial officials have said that the attack killed 12 people, including security forces and civilians were killed.

In the second strike, government civil servants were targeted in Ghazni province and officials confirmed that several people, including a district chief, lost their lives in the attack.

Ghazni province, which lies southwest of Kabul, is a bastion for the Taliban insurgents.

Taliban immediately claimed the attack in Ghazni but there was no immediate claim of responsibility for the Jalalabad attack.

Last week, the Islamic State said that it was behind a wave of deadly strikes in Jalalabad, including the attack that targeted the minority Sikh and Hindu groups and killed 19 people.

Further, officials in Afghanistan have said that over the past 24 hours, Taliban unleashed a number of attacks elsewhere in the country.

The fresh wave of violence came ahead of a two-day meeting of Islamic scholars from around the world which began on Tuesday in Saudi Arabia.

The gathering comes less than a month after the governments brief and unexpected truce with the Taliban, during the Eid holiday ending the fasting month of Ramadan.

Top officials have said that the gathering in Saudi comes amid show of repeated optimism by Afghan government officials in recent days about holding direct talks with Taliban leadership.

However, Taliban, which has refused to Ghanis ceasefire offers, has continued to lead its bloody agenda, and has increased attacks against government forces.

Taliban has argued that it will not engage in talks with the powerless Kabul government until foreign troops leave the country.

At the meeting, the Afghan government is said to be expecting that Islamic scholars would term the Taliban insurgency and use of suicide attacks in Afghanistan as unlawful.