Indian High Commission staffers detained, released in Islamabad

Two Indian High Commission staffers in Pakistan, who were presumed missing since Monday morning, had been detained after they were allegedly involved in a road accident. They were later released. 
The two staffers went missing at 8.30 am and since then they were untraceable. India has taken up the matter with its Pakistani counterparts.
Sources in Islamabad said "two Indian diplomats have been arrested by police authorities" after they were "involved in a road accident".
Both are officials of India's Central Industrial Security Force (CISF), assigned as security to the High Commissioner and other diplomats. The officials, as per police sources, "were over speeding when the accident occurred." However, there was no official communication from Pakistan.
At least one person has been injured in the accident, sources said, adding that as the two Indian staffers tried to flee, the locals stopped them. Later the police arrived and arrested both of them.
Sources said that both the Indian High Commission staffers were out on duty in Islamabad and did not reach their destination.
They were handed over to Islamabad secretariat police station late on Monday night.  Indian High Commission officials reached the police station to take custody of their staff. 
Sources in New Delhi said that Pakistan's charge d'affaires Syed Hyder Shah was summoned to the Ministry of External Affairs and demarched on the reported arrest of two officials of the Indian High Commission in Islamabad.