Afghan officials say a policeman shot two foreign female journalists Friday, killing one and wounding the other on the eve of the country's presidential election.
Authorities say the police officer was arrested following the incident inside a police compound in the eastern province of Khost.
The dead journalist was identified as 48-year old Anja Niedringhaus, an awarding winning German photographer who was working for the Associated Press. AP reporter Kathy Gannon was in stable condition after being wounded twice.
It was the third deadly attack against journalists in the past three weeks as violence has increased in the run-up to Saturday's national and local elections.
The Taliban has vowed to disrupt the upcoming vote.
On March 11, British-Swedish radio journalist Nils Horner was shot dead at point-blank range on the streets of Kabul. Nine days later, gunmen shot and killed Afghan reporter for the French News agency Sardar Ahmad, as well as his wife and two of his three young children in Kabul's heavily protected Serena Hotel.
On Thursday, Jan Kubis, the United Nations Special Representative for Afghanistan, urged Afghan citizens not to let anyone deprive them of their right to vote.
Kubis said there might be difficulties and security problems, but Afghanistan is much better prepared for Saturday's election than it was in 2009.
The Taliban has claimed responsibility for recent election-related violence, including Tuesday's suicide bombing outside the Afghan Interior Ministry, killing at least six police officers