Marie Harf, in a press briefing, said that US is closely monitoring the ongoing sit-ins in Islamabad.
She added that the US ambassador is in contact with Pakistani officials.
Harf also said that the United States encourages the government of Pakistan to hold talks with the protesters in the Red Zone area of Islamabad to resolve the ongoing political crisis in the country.
It should be noted that Pakistan Awami Tehreek (PAT) has staged a sit-in at Red Zone area of Islamabad against the prevailing system in the country whereas Pakistan Tehreek-e-Insaf (PTI) has staged a protest against the alleged rigging in the 2013 elections.
The two parties have vowed that they will not end the sit-ins till Prime Minister Nawaz Sharif resigns from office.