Moment Trump learned about India and Pakistan clashes and air strikes and called it a 'shame' as two nuclear-armed states stand on brink of war

Pakistan claimed to have shot down five Indian fighter jets as it condemned an 'act of war' from India, vowing to retaliate after missiles hit Pakistan-administered Kashmir.

Both sides exchanged heavy artillery along their contested frontier into Wednesday. Pakistan reported 26 killed by Indian attacks, and India reported 10 killed by Pakistan.

The Indian army said 'justice is served', with New Delhi adding that its actions 'have been focused, measured and non-escalatory in nature'.

But fears of a full-blown conflict between the two nuclear powers have escalated sharply in the last few hours.

India says it was attacking bases used by those it blames for an attack on the Indian-run side of Kashmir last month - the worst massacre of civilians in India since 2008.

It added that 'no Pakistani civilian, economic or military targets have been hit' in the missile attacks' - an assertion sharply rebuked by Pakistani officials.