Pakistan's president says that Afghanistan’s Taliban government has “crossed a red line” with drone attacks that wounded several people a day earlier. He said on Saturday that the administration in Kabul has brought “grave consequences upon itself.” The strongly worded statement signaled a sharp escalation in tensions between Islamabad and Kabul as fighting along their border entered a third week despite diplomatic efforts by China and other countries to broker a ceasefire. On Friday, the Afghan Taliban government accused Pakistan of conducting airstrikes inside Afghanistan, saying at least six civilians were killed.

A law enforcement official says the shooter who opened fire in a classroom at Virginia’s Old Dominion University in an attack being investigated as an act of terrorism had a gun with an obliterated serial number. That could complicate efforts to determine how a man with a felony conviction obtained a firearm. The official says investigators will try to re-surface the number in order to trace the gun. The official spoke to the Associated Press on condition of anonymity because they are not authorized to discuss the investigation. The FBI identified the shooter as Mohamed Bailor Jalloh, a former Army National Guard member who pleaded guilty in 2016 to attempting to aid the Islamic State. FBI officials said ROTC students subdued and killed Jalloh to stop the Thursday shooting.

Court documents show the man opened fire in a classroom at Old Dominion University had previously been convicted of aiding a terrorist organization. The shooting Thursday happened less than two years after Mohamed Bailor Jalloh, who the FBI identified as the gunman, left federal prison. He pleaded guilty in 2016 to trying to aid the Islamic State and was on supervised release when the attack occurred. Prosecutors say he talked about attacking the military during an FBI sting that led to his arrest. He also had tried to buy a rifle. A judge gave him 11 years in prison, plus drug and mental health treatment. It wasn’t immediately clear why his release from prison was moved up.