London Terror Suspect was on Mavi Marmara

A 27-year-old terror suspect, Khalid Omar Ali, was arrested in London on Thursday.

Ali was arrested by an armed counter-terrorism unit near the British Prime Minister's office carrying knives.

Ali was also on the Mavi Marmara in 2010, according to a Reuters report.

The Mavi Marmara was a boat that left Turkey trying to break the blockade on Hamas-controlled Gaza.

The activists on the boat attacked IDF troops that intercepted the Marmara. That attack left nine of the terror-supporting Turks dead.