The United Nations mission in the Democratic Republic of Congo says a voter registration worker has been killed in the eastern Ituri region.

The U.N. says the worker was killed Monday at a newly set-up voter registration center.

An investigation has been launched to find the attackers.  The Ituri region is home to several militia groups and fighting there has left an estimated 60,000 people dead since 1999.

Congo is trying to register nearly 30 million people to vote in elections next year, the first multi-party polls in 40 years.

The elections were due to be held in June, but violence in the east and logistical delays led parliament to postpone them. 

Some information for this report provided by AFP and Reuters.