HARRISBURG — Counting an avalanche of 1.4 million mail-in votes dragged into a third day on Thursday as some races from Tuesday’s primary remained too close to call.

The Associated Press has not yet called a number of races where the contest was close or had a large number of votes yet to be counted, or both.

Those races included several where incumbent state lawmakers trailed in the count and the only competitive primary among the statewide races, a six-way Democratic primary contest for auditor general.

It also included a closely watched Democratic primary contest between Eugene DePasquale, the outgoing state auditor general, and lawyer Tom Brier for the nomination to challenge four-term Republican U.S. Rep. Scott Perry in the Harrisburg-based 10th District.

Voters returned almost 1.4 million mail-in or absentee ballots.