April 4 (UPI) -- A fourth man suspected of being involved in an attack on a Jewish volunteer ambulance service was arrested when he attended a hearing for three of his alleged accomplices.

On March 26, four ambulances that belong to a Jewish community organization were torched in the Golders Green area of North London in an attack that police said was aimed at terrorizing the Jewish community there.

Police on Saturday arrested a fourth suspect in the attack during a hearing for three people -- two British citizens, Hamza Iqbal, 20, and Rehan Khan, 19, as well as a 17-year-old with dual British-Pakistani citizenship -- who had already been charged in the crime, The BBC reported.

Officers, who already were aware that four people were responsible for the arson, recognized a 19-year-old man who was suspected of participating and arrested him at Westminster Magistrates' Court.

Golders Green has a large Jewish population and the four people are suspected for being responsible for oxygen cylinders in four ambulances parked outside a synagogue there that exploded on March 23, The New York Times reported.