India's Davis Cup match against Pakistan was on Thursday postponed to November after a security review by the International Tennis Federation.
The tie was to be held in Islamabad on September 14-15. The ITF said it was postponing the tie under "exceptional circumstance".
"Following an in-depth security review of the current situation in Pakistan by independent expert security advisors, the Davis Cup Committee has taken the decision to postpone the Davis Cup Asia/Oceania Group I tie between Pakistan and India in Islamabad, due to be played on 14-15 September," the ITF said in the statement.
"The Committee concluded that this is an exceptional circumstance while the first priority of the ITF is the safety and security of athletes, officials and spectators," it added.
The ITF said the tie has been rescheduled for November, with the exact dates to be confirmed by the Committee no later than September 9.
"The ITF will continue to monitor the situation in Pakistan and the Davis Cup Committee will re-convene to re-examine the security situation in advance of the tie," the world body said.