Two rockets were fired at Kabul airport Saturday but caused no damage. In this photo, Afghan police keep watch in Kabul at the site of a suicide attack in May. Reuters/Omar Sobhani

Two rockets landed at Kabul International Airport Saturday, reported Khaama Press, an online news outlet in Afghanistan. The rockets, fired from an undetermined location, reportedly landed inside the airport but did not cause any damage.

One of the rockets landed near a runway, a security official told Khaama Press. No group immediately claimed responsibility for the attack.

The explosions highlight ongoing security concerns in Afghanistan and come just one week after Afghan intelligence officials claimed to have thwarted a rocket attack by militants in downtown Kabul. They also come on the heels of recent assaults in the area.

In June, a suicide bomber attacked a NATO convoy along the road to the Kabul airport, killing four people and wounding more than a dozen. And in May, a Taliban suicide car bomber attacked a convoy from the European Union police training mission near the entrance of the airport, killing three people and injuring at least 20.

The site has seen clashes in years past too. Last July, militants took over a building outside the airport and attacked the transit center with grenades and automatic weapons. A 2013 raid targeted NATO's headquarters at the airport.

Attacks have been mounting in the war-torn nation as NATO troops wind down operations. Civilian casualties -- in a conflict that spans more than a decade -- hit a record last year, according to the United Nations, surpassing 10,000. The agency has noted such casualties are on the rise again this year.

Meanwhile, the second round of official peace negotiations between the Taliban and the Afghan government is slated to continue in China this month. The first round of face-to-face talks, supervised by American and Chinese officials, was held earlier this month in Pakistan.