The Pakistan High Commission in New Delhi on Tuesday circulated a video showing a slow-moving car blocking one of its diplomat’s vehicles in the national Capital, The Indian Express reported. The High Commission has claimed that Indian security services were behind the incident.

In the video, a white car is seen driving slowly in front of the diplomat’s vehicle, holding up traffic. When other drivers ask the white car driver to speed up, two men on a scooter tell them to overtake and move on. Then a man allegedly took photograph of the diplomat.

The Pakistan High Commission wrote four diplomatic notes to the Ministry of External Affairs last week, mentioning 18 alleged incidents of harassment of diplomats, their family members and Indian workers in the diplomatic mission. Islamabad also issued a démarche to the Indian High Commission in Islamabad and the Ministry of External Affairs in New Delhi. “It is becoming difficult for the Pakistani diplomats posted in India to keep their families with them due to increase in harassment incidents,” an unidentified Pakistani official had said. On March 8, two cars allegedly followed the vehicle carrying the children of Pakistan’s deputy high commissioner. The driver was reportedly forced to step out of the vehicle and was intimidated.

Indian officials have claimed that the hostilities began when the Pakistan Inter-Services Intelligence raided a residential complex being built for Indian diplomats in Islamabad on February 16. The Pakistani agency reportedly disconnected the power and water supply at the complex. High Commissioner Ajay Bisaria had then intimated Pakistan Foreign Secretary Tehmina Janjua about “multiple acts of hooliganism” against Indian staff and property. However, the power supply was reportedly not restored for over two weeks. Pakistani agencies had recently stopped Bisaria’s car in the middle of a busy road to prevent him from attending a lunch the Bohra community had hosted in Karachi. Bisaria was in Karachi to attend a literature festival.

The relations between the two countries have been tense, partly due to an increase in alleged ceasefire violations by Pakistan over the past few months.