Sporadic violence in Pakistan during the second round of local elections has left at least 10 people dead and dozens injured.

Pakistani authorities say the clashes between rival groups came despite deployment of thousands of troops and police at polling stations. In the first round of voting last week, at least 20 people were killed and hundreds wounded.

A record number of more than 200,000 candidates, including several thousand women, are seeking council seats.

Political parties are not allowed to take part in the elections, but their factions are openly supporting candidates.

Parties loyal to President Pervez Musharraf claimed victory in last week's voting, while opposition groups complained of vote tampering.