A picture taken on March 22, 2016 shows Belgian police and emergency staff standing guard in the Wetstraat - Rue de la Loi, which has been evacuated after an explosion at the Maelbeek-Maalbeek metro station in Brussels. A string of explosions rocked Brussels airport and a city metro station on March 22, killing at least 13 people, according to media reports, as Belgium raised its terror threat to the maximum level. The blasts come days after the dramatic arrest in Brussels on March 18 of Salah Abdeslam, the prime suspect in the Paris terror attacks that killed 130 people in November, after four months on the run. / AFP / BELGA / LAURIE DIEFFEMBACQ / Belgium OUT (Photo credit should read LAURIE DIEFFEMBACQ/AFP via Getty Images)
