A bomb in a briefcase exploded at a New Delhi courthouse Wednesday morning, killing 11 people while wounding 59 others, Indian officials said. More than 100 people were lined up at the capital’s High Court to have various appeal cases heard when the bomb went off. Witnesses described seeing smoke and blood “everywhere,” the Associated Press reports. It was the second attack on the building in five months. Earlier this year, there was a failed bombing outside the court. Pakistani-based militant Muslim group Hakat-ul-Jihad-al-Islami has claimed responsibility for the attack in an email. The attack comes amidst continued worries over India’s vulnerability to terrorism in the wake of the 2008 Mumbai attack that killed 166 people.