The Wall Street Journal is conducting a review of hundreds of articles by Jay Solomon, who was the paper’s chief foreign affairs correspondent. He was fired on Wednesday after evidence emerged that he had possibly become entangled in the commercial dealings of an Iranian-born aviation titan who was a key source for some of his stories.

Karen Miller Pensiero, who oversees newsroom standards, is leading the review.

It is part of The Journal’s response to an article published by The Associated Press on Wednesday that described communications between Mr. Solomon and the businessman, Farhad Azima, about a possible business venture involving aerial espionage in Iran and a $725 million defense-related contract with the United Arab Emirates.

The Associated Press contacted the newspaper on Monday about documents that appeared to connect Mr. Solomon and Mr. Azima. That day, Paul Beckett, The Journal’s Washington bureau chief, was summoned to the company’s New York headquarters, where he met with top editors on Tuesday about The A.P.’s impending story.

Early Wednesday, employees in The Journal’s D.C. bureau sensed that Mr. Solomon, 49, was in some trouble. Around 3 p.m. Mr. Beckett sent an email calling for a staff meeting. The meeting was brief. Mr. Beckett told the employees that he wanted them to hear from him that Mr. Solomon had been fired and that The A.P. was going to publish a story that would raise some questions about him.