( CNN ) -- Police are investigating after two UNICEF staff members went missing in Karachi , Pakistan , a United Nations spokesman said Sunday . The staffers went missing on Thursday evening , United Nations spokesman Vittorio Cammarota said . Police are in close contact with the UNICEF employees ' families , he said . The port city of Karachi is Pakistan 's financial capital . On Saturday , gunmen wounded a prominent Pakistani TV news anchor there . His brother linked the attack to the nation 's government , drawing a denial from military officials . Hamid Mir was shot three times by gunmen in a car and on two motorcycles near Karachi 's airport , his network Geo News -- a CNN affiliate -- reported . Amir Mir -- the targeted news anchor 's brother and a journalist himself -- said his brother believed ISI , Pakistan 's powerful intelligence agency , had plans to assassinate him . The Pakistani military public relations agency ISPR said that `` raising allegations against ISI or the head of ISI without any basis is highly regrettable and misleading . '' In the same statement , a spokesman for that agency condemned the attack and `` prayed for ( Mir 's ) well-being and quick recovery . '' CNN 's Pierre Meilhan and Greg Botelho contributed to this report .
2 UNICEF staff ##ers went missing in Karachi on Thursday , an official says . Police are investigating and in close contact with the staffers ' families . Gunmen also wounded a Pakistani TV journalist in an attack there .