ISLAMABAD -- Pakistan's Foreign Ministry says Islamabad has ratified the landmark Paris Agreement which requires signatory countries to take steps to limit global warming.

In a statement Friday, the ministry said the pact was ratified in a ceremony at the U.N. headquarters in New York. The Paris deal calls for keeping global temperature increases below 2 degrees Centigrade (3.6 degrees Fahrenheit) compared with preindustrial times.

Pakistan committed to the accord in April.

Climate change in recent years has caused deadly heatwaves in Pakistan's southern Sindh province. Earlier this month, the city of Lahore was engulfed in heavy smog for several days.