ISLAMABAD - The Islamic State group said Friday it was behind a roadside bomb that injured 13 in Quetta, the SITE Intelligence Group said, days after a major attack in the city killed 74.

The latest explosion on a bridge in the city on Thursday injured four police personnel and nine passers-by, in an attack apparently targeting a judge. SITE reported that the IS group claimed the attack on its Telegram channel, al-Bayan Radio and Twitter.

The attack came just days after a suicide bombing at a hospital on Monday also claimed by the IS group killed 74 people, most of them senior lawyers gathered to mourn a colleague gunned down earlier in the day.  Lawyers are among the only people shining a spotlight on the Balochistan’s many problems and have come under frequent attack.

Monday’s bombing was also claimed by the Jamaat-ul-Ahrar faction of the Pakistani Taliban and analysts have been unclear on whose claim was more credible.