Islamabad: Pakistan Prime Minister's Foreign Affairs Adviser Sartaj Aziz, in an response to India's supersonic interceptor missile test, on Monday said that Islamabad would address the development at an international level. Expressing concern over India's missile test conducted on Sunday, Aziz said it will disturb the balance of power in the region, and added that Pakistan will continue to upgrade its defensive capabilities by acquiring advanced technology, Radio Pakistan reported. India is enjoying the cooperation of the US, as Washington thinks a strong India is vital to contain China, he said. The adviser said Pakistan would raise its voice at the international level against these developments. Aziz's statement comes after India successfully test-fired indigenously developed supersonic interceptor missile, capable of destroying any incoming ballistic missile, from a test range off the Odisha coast.