The US, UK, China, Russia and the European Union have urged India and Pakistan to exercise restraint and avoid further military activity.
This comes as Indian and Pakistani troops traded fire along the Kashmir border, a day after the nations both rival jets, with Pakistan capturing an Indian pilot.
The US has asked India and Pakistan to hold direct communication to de-escalate the situation.
"The United States calls on India and Pakistan to cease all cross-border military activity and for a return to stability. Further military activity will exacerbate the situation," a State Department spokesperson said.
Expressing "serious concern" over the escalation of tensions, Russia stressed that existing problems should be solved through "political and diplomatic means".

Kenya tourist helicopter crash kills seven
US, South Korea to cut length, scope of military drills after Trump order
Central African Republic gold mine collapse kills at least 100
Israeli airstrike kills nine Palestinians at Gaza police station
Thai schools hold shooting response drills after deadly school attack