Katrin Bennhold

A dragnet across Europe widened on Tuesday to include a second fugitive suspected to have taken part in the Paris terrorist attacks, as officials tried to make sense of a torrent of emerging intelligence about the planning and execution of the attacks.

The Belgian man suspected of plotting the Paris terrorist attacks was a target of Western airstrikes on the Islamic State stronghold of Raqqa, Syria, as recently as last month, according to a European security official.

The hunt for those responsible for the Paris terrorist attacks escalated on Monday as French officials identified a 27-year-old Belgian who fought for the Islamic State in Syria as the chief architect of the assaults and the police in France and Belgium conducted extensive raids seeking other suspects.

Three teams of Islamic State attackers acting in unison carried out the terrorist assault in Paris on Friday night, officials said Saturday, including one assailant who may have traveled to Europe on a Syrian passport along with the flow of migrants.

It was a genteel campaign to ensure that British bank notes would continue to carry images of women, and it could have ended with the announcement last month that Jane Austen, the much-beloved novelist, would replace Charles Darwin on the 10-pound note.