Kabul, Oct 13 (IANS): Five people were killed and 31 others injured in four blasts, including two suicide attacks, in militancy-plagued Afghanistan Monday, officials said.

The first deadly incident which occurred in the capital city Kabul targetted a convoy of NATO-led forces and left one civilian dead and three others injured, police said.

"One civilian was killed and three others injured in the explosion which occurred at around 6.30 a.m. in Pul-e-Charkhi road which is also called Jalalabad road in eastern Kabul," a police official told Xinhua but declined to be identified, saying authorised officials would brief the media after investigation.

The bomber was also killed in the blast, he added.

Unofficial sources said three foreigners in the convoy were injured in the suicide attack for which the Taliban claimed responsibility. The NATO-led forces are yet to make comment.

The attack took place near the Green Village Camp, which houses UN staff and other foreign contractors as well as aid workers, the police source added.

Two-and-a-half hours later, another suicide attack against an army vehicle rattled Ghani Khil district in eastern Nangarhar province leaving three people dead, including the bomber himself, and wounded seven others, police spokesman Hazrat Hussian Mashriqiwal said.

"A terrorist fastened an explosive device to his body and blew himself up next to military armoured personnel carrier in Ghani Khil district at around 9 a.m. today (Monday) killing himself and two passers-by and injuring seven others, including six civilians," Mashriqiwal told Xinhua.

Two women were among those killed and injured in the blast, the official stressed.

In the third bloody blast which happened at 10 a.m. in Qarabagh district, 40 km north of Kabul, 18 people, all civilians, including four children, were injured, Abdul Sami Sharifi, the district governor, told media.

At 10.15 a.m., an explosive device planted on the vehicle of a government official in the northern Kunduz province exploded leaving three people, including a finance ministry advisor on revenue, Tahir Khanzada, and his driver injured, police spokesman Sayed Sarwar Hussaini told reporters.

The Taliban have intensified attacks over the past couple of months as the US and the NATO-led troops are scheduled to withdraw from the country by the year-end.