Military experts said such attacks in the capital city, Kabul, reveal the "weakness" of security agencies.
Most of the students who lost their lives in the attack on Kabul University on Monday were among top scorers in their classes.
Mariam Hakimi and Hanifa Afshar were students of the public administration faculty of Kabul University.
Survivors of the Kabul University attack and students of the university said they will return to their classes.
At least 22 people were killed and over 40 others were killed in the attack on Kabul University.
Taliban spokesman Zabihullah Mujahid rejected Saleh's remarks and said it is an attempt to defame the Taliban.
Khalilzad called on warring sides to unite for peace, find a path to a ceasefire, and accelerate a political settlement…
Ghani says that the attack on Kabul University will not remain without response and that “we will retaliate.”
The Interior Affairs Ministry says the attack left 19 people dead and 22 others wounded.
The Interior Affairs Ministry said that 19 people were killed and 22 others were wounded in the attack.