Explosion Near Mogadishu Prison Shatters Period of Calm

Here is a 170-word summary of the news article: An explosion occurred near the Godka Jilacow prison in central Mogadishu, Somalia on Saturday. The blast shattered a period of relative calm in the city, coming just hours after the government lifted several roadblocks, indicating improved security conditions. The explosion was powerful, though the specific details and extent of the damage or casualties are not yet clear. The prison is known to hold high-profile terrorism suspects, suggesting the blast may have been a targeted attack. Somalia has faced a long-running insurgency by the al-Shabab militant group, which has carried out frequent bombings and other attacks in the capital and elsewhere in the country. The lifting of roadblocks was seen as a sign of progress, but this latest explosion demonstrates the fragility of the security situation. The Somali government and security forces will likely investigate the incident and work to respond to the threat posed by al-Shabab and other militant groups operating in the region.