The number of confirmed coronavirus cases in Pakistan sharply rose to 237 yesterday. <br />''<br />''The Sindh province is the worst-hit with 172 cases, followed by 26 in Punjab, 16 each in Khyber Pakhtunkhwa and Balochistan, 5 in Gilgit-Baltistan and 2 in Islamabad. Prime Minister Imran Khan has warned that the viral infection will spread further in the country.