Sen. Bernie Sanders has won the Democratic presidential caucuses in Wyoming, extending his string of victories over front-runner Hillary Clinton, according to the Associated Press.

However, he narrowly lost the state's two largest counties -- Laramie and Natrona -- to Clinton during the caucuses on Saturday, according to reports from K2Radio in Casper and KGAB in Laramie.

Clinton supporters in Natrona County will send 20 delegates to the Wyoming Democratic Party Convention in Cheyenne on May 28, and Sanders supporters will send 18.

Likewise, Clinton supporters in Laramie County will send 26 delegates compared to 25 for Sanders.

The Vermont senator's biggest victory appears to be in Albany County, where he won nearly 75 percent of the vote, taking 25 delegates to former Secretary of State Clinton’s eight delegates, according to kowb1290.com.

The county parties' delegates at the state convention will select the delegates to go to the National Democratic Party Convention in Philadelphia on July 25-28.

Sanders has won seven of the last eight caucuses and primaries, although he still trails Clinton in overall delegates. Wyoming had only 14 delegates at stake Saturday.

Sanders campaign spokesman Vivek Kembaiyan said in a news release that he was speaking at a rally at LaGuardia Community College in Queens, N.Y., when his wife, Jane, went on stage to tell him the news.

"Alright, news bulletin. We just won Wyoming,” Sanders said to cheers. “We appreciate and thank the people of Wyoming so much for their support."

Sanders is campaigning in Queens and other boroughs of New York City in advance of the next Democratic Party primary in New York with 247-pledged delegates at stake.

State Democratic Party Executive Director Aimee Van Cleave said she heard reports of good turnouts.

"Not record breaking but on par with previous records," Van Cleave said. "2008 was our high-water mark and most counties are coming right within 2008 numbers.