NEW YORK – Alleged al-Qaida operative Abid Naseer pleaded not guilty Monday to charges that he was part of a terror plot against New York City subways and targets in Denmark and Britain.

Naseer, 26, a Pakistani who had been living in the United Kingdom, was extradited to the United States last week. His plea was entered by his court-appointed attorney. U.S. District Judge Raymond Dearie ordered Naseer detained pending his next court appearance on March 7.

In a 2010 indictment, prosecutors charged Naseer with providing material support to al-Qaida, and said that he had been recruited in 2008 to participate in the European end of a multinational bomb plot that included a plan to have three U.S. residents from Queens launch a suicide plot in the subways.

That part of the plot was thwarted in September 2009. Former high school classmates Najibullah Zazi and Zarein Ahmedzay have both pleaded guilty in that case, and their testimony led to the conviction last year of Adis Medunjanin.