KARACHI - Nicholas Shamble, a US based journalist went missing from Karachi since last two days, The Nation learnt here on Wednesday. According to a source, Shamble had reached Karachi on August 12 and stayed at a local hotel in Karachi and reportedly checked out from the hotel for Islamabad on Monday but did not reach there. Shamble is the editor of US based magazine Smith Sonian and had been visiting Pakistan more frequently. The source further said that shamble used to work on terrorism and other issues of Pakistan while during this visit he had a scheduled interview with Asif Ali Zardari Co-Chairman PPP and also working on the current circumstances of Balochistan and aftermath of Lal Masjid action. It has also been learnt by the sources that Shamble had been deported from Pakistan some two years ago but again arrived in Pakistan. The sources further said that Shamble was in touch with a local journalist of Sindh and the said journalist was also missing for last two days. Home Secretary Sindh Arif Ahmed Khan when contacted said that both of them were missing but hopefully law enforcement agencies will catch them soon. He said that they were probably in Sukkur, Interior Sindh and the police of interior Sindh are tracing them.