Injured people receive medical treatment at a local hospital after a suicide attack in Kama district of Nangarhar province, Afghanistan, Oct. 2, 2018. At least 13 people were killed and 30 others wounded after a suicide bombing ripped through an election rally in Afghanistan's eastern province of Nangarhar on Tuesday. (Xinhua/Saifurahman Safi)

UNITED NATIONS, Oct. 2 (Xinhua) -- UN Secretary-General Antonio Guterres on Tuesday condemned the series of lethal attacks in Afghanistan in the run-up to the October parliamentary elections, said his spokesman.

Guterres extended his deepest sympathies to the families of those who killed, and wished a speedy recovery to those injured, said Farhan Haq, UN deputy spokesman, in a statement.

"The deliberate targeting of civilians is a violation of international humanitarian law," it said, urging all parties to creat a safe environment for a peaceful and orderly electoral process.

The latest attack -- a suicide bombing at a campaign rally -- took place Tuesday in Nangarhar Province. The bombing killed more than a dozen people.