China has warned its citizens in Pakistan to be on alert after receiving intelligence reports about possible attacks targeting Chinese.

The Chinese Embassy in Islamabad said on its website on Friday that it had information about a “series of terror attacks” planned against Chinese organisations and personnel, without giving details. It urged its citizens to stay inside and avoid crowded places.

Read more: Chinese Embassy warns Interior Ministry of possible 'threat' to ambassador

Thousands of Chinese workers are employed in development of about $60 billion worth of infrastructure projects under Beijing's 'Belt and Road' initiative. The port and road-building projects have come under frequent attacks in Balochistan.

The government has promised Beijing that it will deploy troops to secure the China-Pakistan Economic Corridor and Chinese nationals in the country.

Earlier this year, two Chinese nationals who were believed to be Christian missionaries were abducted from Quetta and killed by the militant Islamic State group.