Up to 15 people were killed in suicide bombing, gunfire attacks and military operations in Afghanistan within two days, the authorities said Wednesday.

In capital Kabul, four people, including two suicide bombers, were killed and five others wounded when the bombers attacked a foreign military camp in the main diplomatic district earlier Wednesday morning.

"Two men wearing explosive belts were trying to enter a military camp of foreign forces in street 14 of Wazir Akbar Khan neighborhood at around 8:00 a.m. (local time) Wednesday when they were identified and shot by security guards, leading to explosion of their explosive belts," the Kabul police said in a statement.

Two Afghan security guards were also killed and five passersby were wounded in the explosion which took place near the government- run National TV station and the US embassy compound in the city with more than 4 million populations.

Several embassies, military compounds and homes to high-ranking Afghan officials are located in the area.

"The wounded were evacuated to a nearby hospital and investigation was going on into the incident," the statement added.

The blasts also damaged several buildings and cars parked near the site besides damaging the guard towers and the wall of the camp named Camp Eagle, according to local media reports.

The government troops immediately cordoned off the area shortly after the blast as bomb disposal squad checked the unexploded parts of the explosive vest.

No group has claimed responsibility for the attack so far. However, the Taliban militant group, who has been waging an insurgency since its regime was toppled by a USled invasion in late 2001, was often responsible for such attacks.

A total of seven Taliban have been killed and 11 others detained by the Afghan police within a 24-hour time, the Afghan Interior Ministry said in a statement earlier Wednesday.

"Afghan National Police (ANP) supported by the army and NATO- led Coalition Forces launched seven joint cleanup operations in Nangarhar, Wardak, Faryab, Kandahar, Zabul, Logar and Khost provinces, killing seven armed Taliban militants and detaining 11 other suspected Taliban over the past 24 hours," the ministry said in the statement.

The ANP also found and seized weapons, the statement said, without saying if there were any casualties on the side of security forces.

Separately, a policeman with the ANP and two Taliban militants were killed and a policeman was injured when Taliban raided a police post in southern Helmand province overnight.

"Taliban launched an armed attack against a police checkpoint in Musa Qala district mid-night sparking an hour-long fighting which results in the death of a policeman and two Taliban militants," a spokesman for provincial government, Ahmad Zirak, told Xinhua Wednesday morning.

He said the police seized an AK-47 gun, two motorcycles and a car after the attack in the province 555 km south of Kabul.

In addition, a local Taliban leader was killed in an operation carried out by the Afghan forces and the NATO-led coalition troops in eastern Ghazni province on Tuesday.

"Afghan and coalition security force killed Taliban leader Saifullah during a security operation in Ghazni province Tuesday," the coalition or International Security Assistance Force (ISAF) said in a statement earlier Wednesday.

The killed leader, also known as Allah Dad, was responsible for ensuring freedom of movement for Taliban fighters to gather intelligence and conduct indirect fire and improvised explosive device (IED) attacks against Afghan and coalition personnel in the province 100 km south of capital Kabul, the statement added.

"Prior to his death, Saifullah was involved in an IED attack against Afghan National Security Forces," it said.

In eastern Logar province, 60 km south of Kabul, another Afghan and coalition forces unit killed several insurgents during an operation in search of a high-ranking Taliban leader and weapons facilitator Wednesday morning, the coalition statement further said.

"As the Afghan and coalition security force approached the Taliban leader's suspected location, multiple insurgents armed with rocket propelled grenades and small arms maneuvered against and attacked the combined force. The partnered force returned fire, killing several insurgents and defeating the attack. The security force detained one suspected insurgent and seized several RPGs and a large quantity of assault rifles as a result of the operation," the coalition statement said without disclosing the exact number of the killed.

Violence has been on the rise since Taliban launched an annual spring offensive on May 3.

The insurgent group has warned the civilians to stay away from official gatherings, military convoys and centers regarded as the legitimate targets by militants besides warning people against supporting government and foreign troops.