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Pakistan, on guard for terror, bolsters internal security

ISLAMABAD, Pakistan (CNN) -- Fearing sabotage and terrorism, Pakistan is beefing up internal security.

Officials on Wednesday cited a deteriorating situation along the country's border and the presence of new refugees in the country.

"Some of these new entrants are trained terrorists and might want to settle scores here in our country," a senior military official said. "We have to be prepared for that."

The measures include deployment of troops on all major highways and entry points connecting North West Frontier and Baluchistan provinces with the capital city of Islamabad.

Army stations and monitoring posts have also been established on the high hills of Islamabad, particularly those close to the office of the president, Gen. Pervez Musharraf.

City patrols by military vehicles mounted with guns have also been increased, sources say.

CNN's Talat Hussain contributed to this report.