The American and British embassies in the Pakistani capital, Islamabad, have resumed normal service after security alerts earlier this week.
On alert outside the UK High Commission
The UK high commission shut down on Monday after receiving threatening telephone calls.
The US embassy had suspended some of its services and cancelled an Independence Day party on the premises.
The threats, of an undisclosed nature, led to further increases in security in Islamabad's diplomatic area.
"The High Commission is open for full service," a British spokesman told the AFP news agency on Thursday.
The US embassy confirmed that its visa section had reopened.
A BBC correspondent in Islamabad says that, after the war in Iraq, American, British and Australian nationals were considered to be the most at risk of attack from targeted reprisals by Islamic extremists in Pakistan.
There were a series of attacks against westerners and Christians which appeared to subside in the immediate aftermath of the war.
But our correspondent says that reports from a number of western sources suggest that the threat of violence is returning.