Police and security officers cordon off the area of a deadly bombing, in Lahore, Pakistan, on Monday.

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Jamat-ul-Ahrar claimed responsibility for the blast

Monday's blast occurred at Charing Cross in Lahore, Pakistan's second-largest city

Islamabad, Pakistan CNN  — 

A bomb exploded during a protest in Lahore, Pakistan, on Monday, killing at least 14 people and injuring 59 more, according to government spokesman Malik Ahmad Khan.

Jamat-ul-Ahrar, a splinter group of Pakistan’s Tehreek-i Taliban (TTP) – also known as the Pakistani Taliban – claimed responsibility for the attack in a statement emailed to CNN.

Jamat-ul-Ahrar was also responsible for a deadly attack in Lahore less than a year ago. Last Easter Sunday, a suicide bombing at a neighborhood park killed at least 69 people and injured 341 others.

Monday’s blast occurred at Charing Cross in Lahore, the capital of Pakistan’s Punjab province and the second-largest city in the country.

Pakistani Prime Minister Muhammad Nawaz Sharif strongly condemned the blast, according to a statement obtained by CNN, saying that “such cowardly acts cannot deter the resolve of the nation to stand against terrorism and our government is committed to root out this menace.”

Journalist Adeel Raja and CNN’s Sophia Saifi reported from Islamabad, with CNN’s Eric Levenson writing and reporting from New York. Journalists Zahir Shah and Saleem Mehsud also contributed to this report.