KABUL (Reuters/AFP) - Two candidates were among more than 20 people kidnapped in Afghanistan, officials said on Friday on the eve of a parliamentary election the Taliban has vowed to disrupt, a grim start to the poll despite tightened security. More than 2,500 candidates are standing for 249 seats in the lower house of parliament, the Wolesi Jirga. Reports of violence and kidnapping spread from Afghanistans west to east, although the capital, Kabul, was relatively quiet as security forces imposed a clampdown. Noor Mohammad Noor, a spokesman for Afghanistans Independent Election Commission (IEC), said a candidate had been kidnapped in eastern Laghman province. The Taliban has threatened attacks to disrupt todays poll and called a boycott, putting security forces on high alert. The group claimed responsibility for abducting Abdul Rahman Hayat, a candidate from eastern Lagman province, and an electoral official also blamed the other kidnappings on the Taliban, who have already killed three candidates. We have kidnapped Hayatullah Hayat, Taliban spokesman Zabihullah Mujahid said in a message to an AFP reporter. Qari Safiullah, another candidate in western Herat, had been missing for the past three days along with three campaign workers, Safiullahs family told Reuters. Eight IEC officials and 10 campaign workers were kidnapped in northwestern Badghis province. The rash of abductions came despite security preparations being ramped up across the country before the vote, a key test after a deeply flawed presidential ballot last year, and will likely test the resolve of voters in the face of Taliban threats. Almost 300,000 Afghan soldiers and police will guard the poll, backed up by almost 150,000 foreign troops. On Thursday, the Taliban renewed its threat to attack foreign and Afghan targets and urged voters to stay at home. In northern Kunduz, Afghan and Nato-led troops killed a Taliban commander who was planning election attacks, the coalition said. A mosque to be used as a polling station was hit by rocket fire in Logar, south of Kabul, IEC officials said. In southern Kandahar province, the focal point of the fight against the Taliban and the birthplace of the Taliban, coalition troops killed another three Taliban insurgents in the Arghandab district, a key area near Kandahar city. Observers fear security worries could lead to a low voter turnout, as it did last year when the Taliban staged dozens of attacks but failed to disrupt the process entirely. However, voter turnout was very low in the south and east where Pashtuns, Afghanistans main ethnic group, dominate and where the Taliban has its strongest support.