Sajid Javid received a package this week containing a “sticky substance” and urging people to commit crimes against Muslims

Sajid Javid has become the fifth MP to be sent a suspicious package and a letter calling for “Punish a Muslim” day.

The communities secretary received the package this week after similar deliveries to four Labour MPs. Mr Javid, the MP for Bromsgrove, tweeted an image of the letter with the caption “#fanmail”.

As well as “a sticky substance”, the packages have included copies of letters sent to Muslims in London, Yorkshire and the Midlands in recent days calling for April 3 to be declared Punish a Muslim Day.

The letters, which are being investigated by counterterrorism police, promise “points” for carrying out crimes against Muslims, including 50 points to “throw acid in the face of a Muslim”, 1,000 to “burn or bomb a mosque”