Karachi police have arrested 12 suspects allegedly planning an act of terrorism in the city on May 12, Geo television reported. According to police officials, the 12 suspects had confessed they planned a terrorist attack in Karachi on May 12, when the chief justice of Pakistan (CJP) is due to visit the city. The suspects allegedly planned to shoot at the CJPÂ’s procession on Shahra-e-Faisal. They were arrested from Lines Area, Shah Faisal and Maleer and were carrying a large cache of arms. Police said this was why the chief justice of Pakistan had been asked to postpone his visit. Earlier, Aaj television quoted the Karachi police chief as saying that there was a risk of a terrorist attack on May 12. He said security would be tightened before the chief justice of PakistanÂ’s arrival.