RIVERSIDE (CBS/AP) — A judge Monday denied bail for a Riverside man who is one of four men accused of plotting to kill Americans and destroy U.S. targets in the Middle East.

Judge Sheri Pym declared Arifeen David Gojali, 21, a flight risk and a potential danger to the community.

READ MORE: Trevor Noah Returns As Host Of The 2021 Grammy Awards

Gojali, 23-year-old Ralph Deleon of Ontario, 34-year-old Sohiel Omar Kabir of Pomona, and 21-year-old Miguel Alejandro Santana Vidriales of Upland were charged Nov. 16 after an FBI investigation revealed the men allegedly conspired to join Al-Qaeda and the Taliban in Afghanistan.

According to court documents, Kabir introduced Deleon and Vidriales to radical Islamic doctrine in 2010.

Deleon and Vidriales converted to Islam and began to engage with Kabir on Facebook and other social networking platforms.

Investigators claim Kabir traveled to Afghanistan in July and told the two men he would introduce them to those associated with the Taliban and Al-Qaeda when they arrived overseas.

Deleon and Vidriales told a confidential FBI source that they planned to go to Afghanistan to engage in “violent jihad.”

READ MORE: 'A Beautiful Soul': Messages Of Shock At Murder Of Jacqueline Avant Pour In From Bill Clinton, Tyler Perry, Magic Johnson

In September, Gojali was recruited by the men to participate in the plot.

Deleon and Vidriales are being held without bail. Kabir is in federal custody in Afghanistan.

If convicted, they face up to 15 years in prison.

RELATED STORY:

FBI: 4 Inland Empire Men Charged In Alleged Terror Plot

MORE NEWS: Jacqueline Avant, Wife Of Music Executive Clarence Avant, Found Shot To Death In Beverly Hills Home Invasion

(TM and © Copyright 2012 CBS Local Media, a division of CBS Radio Inc. and its relevant subsidiaries. CBS RADIO and EYE Logo TM and Copyright 2012 CBS Broadcasting Inc. Used under license. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.)