Bombardment by the Pakistani army in Afghanistan's eastern Paktika province on Tuesday killed at least 46 people, most of whom were children and women, said the Afghan Taliban, vowing to retaliate against their neighbour.
The bombing occurred at four locations in Afghanistan, Deputy Spokesperson Hamdullah Fitrat said on Wednesday, adding that six people were also injured.
Pakistani government and military officials did not immediately respond to requests for comment.
"Afghanistan considers this brutal act a blatant violation of all international principles and an obvious act of aggression... The Islamic Emirate will not leave this cowardly act unanswered," said Enayatullah Khowrazmi, the spokesman for the Ministry of National Defense.
The neighbours share a strained relationship, with Pakistan saying that several of the militant attacks that have occurred in its country have been launched from Afghan soil - a charge Afghan Taliban denies.
Their relationship was further complicated in March when the Taliban accused Pakistan of carrying out two air strikes on its territory, killing five women and children.
Pakistan acknowledged at the time that it had conducted "intelligence-based anti-terrorist operations" in Afghanistan but did not specify the nature of the operations.
A suspected gas explosion at a department store in the central Taiwanese city of Taichung killed at least four people and injured 24 others on Thursday, the fire department said.
US President Donald Trump said Russian President Vladimir Putin and Ukrainian President Volodymyr Zelenskyy expressed a desire for peace in separate phone calls with him on Wednesday, and Trump ordered top US officials to begin talks on ending the war in Ukraine.
Israel's military has called up reservists in preparation for a possible resumption of fighting in Gaza if Hamas fails to meet a Saturday deadline to release more Israeli hostages and a nearly month-old ceasefire breaks down.
Israeli Prime Minister Benjamin Netanyahu said the ceasefire in Gaza would end and the military would resume fighting Hamas until it was defeated if the Palestinian group did not release hostages by midday Saturday.
Officials from Bangladesh's former government and security apparatus systematically committed serious human rights violations against protesters staging mass demonstrations last summer, the UN human rights chief said on Wednesday.