KABUL, Oct. 6 (Xinhua) -- At least two Afghan security personnel were killed and nine people were wounded in two back to back bomb explosions in an eastern neighborhood of Kabul on Saturday, local police said.

"A sticky bomb attack targeted a military vehicle at around 07:30 a.m. local time, killing two security personnel. The second blast came about 20 minutes after police and rescue team's arrival, injuring nine people, including three passers-by and six police officers," the police official told Xinhua anonymously.

The incident occurred in Shena locality, in Police District 12 and the district police chief was among the injured, he said.

Further details about the incident are still forthcoming amid the absence of any official statement.

Over the past few months, Afghanistan, especially Kabul, has witnessed waves of terror attacks by the Islamic State (IS) outfits and Taliban insurgents opposing the country's long-delayed parliamentary elections scheduled for later this month.

During the upcoming Oct. 20 elections, nearly 9 million registered voters, including 3 million women, will cast their ballots to elect members of the 249-seat lower house of parliament for a five-year term, while they will also vote to elect members of the district councils.