PORTLAND (AP) — The campaigns for Hillary Rodham Clinton and Barack Obama have apologized for violating a new Oregon law that bans them from making automated phone calls to households on the federal no-call list.

The Oregon attorney general got a few complaints about unsolicited automated calls made from the Clinton campaign, said Stephanie Soden, spokeswoman for the attorney general’s office.

Isaac Baker, a Clinton campaign spokesman, said the campaign relies on automated calls to tell people about events and to urge them to vote. Campaign officials agreed to stop making the “robo” calls after the attorney general informed them about the law that took effect Jan. 1.

The law does allow candidates or campaign workers to make live, unsolicited calls, even to numbers on the no-call list. There’s also an exception allowing candidates or businesses to make automated calls to people with whom they’ve had previous relationships. For example, a credit-card company can call customers.

Violating Oregon’s law brings a maximum penalty of $5,000 per call. The calls could also backfire by angering voters.

Anne Stacey of Portland said she got a recorded call from Chelsea Clinton despite adding her number to the federal no-call list more than a year ago.

“It was in the evening, probably 7:30 to 8:30,” Stacey told The Oregonian newspaper. “I was just really upset.”

Though it was calls from the Clinton campaign that generated complaints, the Obama campaign acknowledged it had also made such calls.

“If someone who should not have been contacted received a call, then we deeply regret it and do apologize,” said Nick Shapiro, spokesman for Obama’s Oregon campaign.

“We will make every effort to ensure that it does not happen again.”