LAHORE - Pakistan Tehreek-e-Insaf (PTI) leader Asad Umar said on Wednesday that police without waiting for the Islamabad High Court to take up Imran Khan’s plea attacked Zaman Park and resorted to heavy shelling.Asad Umar, on his Twitter handle, said the world was observing the day against Islamophobia, a day which was being marked by the United States due to the sheer efforts of Imran Khan