Pakistan head coach Misbah-ul-Haq and bowling coach Waqar Younis have resigned from their roles a little over a month before the T20 World Cup begins.

The pair were appointed in September 2019 and were under contract with the Pakistan Cricket Board (PCB) for another year.

However, Misbah and Waqar informed the PCB of their decision to leave on Monday ahead of the upcoming three ODIs and five T20Is against New Zealand, with the T20 World Cup in the United Arab Emirates and Oman also on the horizon.

Saqlain Mushtaq and Abdul Razzaq have joined the Pakistan management team as interim coaches for that New Zealand series, which begins on September 17.

Misbah's decision to step down was for family reasons amid the ongoing coronavirus pandemic, with the 47-year-old having recently spent time self-isolating in Jamaica after testing positive for COVID-19.

"The quarantine in Jamaica post the West Indies series provided me with an opportunity to reflect on the past 24 months as well as the schedule for international cricket ahead," Misbah said in a statement. 

"Considering that I would have had to continue to spend considerable time away from my family and that too in a bio-secure environment, I have decided to step down from the role.

"I understand that the timing may not be ideal but I don't think I am in the right frame of mind for the upcoming challenges and it makes sense for someone fresh to step in and take the side forward.

"The past 24 months have been thoroughly enjoyable and I want to thank my team and the management for their support. 

"I wish the Pakistan cricket team best of luck in the upcoming events and will continue to support them every time they will take the field to represent Pakistan."

Waqar's decision to step down was linked to Misbah's departure. 

"After Misbah shared with me his decision and future plans, it was a straightforward one for me to resign as we had walked into the roles together, had worked collectively as a pair and now also step down together," Waqar said.

"Working with the Pakistan bowlers, including the youngsters, has been most satisfying as they have now started to show progress. 

"Bio-secure environments in the past 16 months have had their impact, something we had never experienced during our playing days.

"The next eight months will be busy and exciting for the Pakistan team and, like in the past, I will continue to back and cheer them. 

"I want to thank each and every member of the Pakistan cricket team set-up as we stayed united in good and bad days, and hope there will be brighter days ahead."

The shock double exit came two hours after Pakistan had named their squad for the T20 World Cup, as well as the warm-up internationals against New Zealand and England.

Asif Ali and Khushdil Shah were among the surprise inclusions in the 15-man selection.

Pakistan squad: Babar Azam (c), Asif Ali, Hasan Ali, Shaheen Afridi, Mohammad Hafeez, Mohammad Hasnain, Azam Khan, Shadab Khan, Sohaib Maqsood, Mohammad Nawaz, Haris Rauf, Mohammad Rizwan, Khushdil Shah, Imad Wasim, Mohammad Wasim.

Misbah-ul-Haq will remain in the Caribbean when the Pakistan squad fly home on Wednesday after the head coach tested positive for coronavirus.

The former Pakistan batsman must quarantine for 10 days after he was the only member of the touring party to return a positive PCR test.

Misbah had been due to head home a day after Pakistan salvaged a 1-1 Test series draw with West Indies, winning by 109 runs at Sabina Park.

A Pakistan Cricket Board (PCB) statement said: "Pakistan head coach Misbah-ul-Haq has tested positive and, as such, will not depart for Lahore with his side later today (Wednesday).

"Misbah, who is asymptomatic, will now undergo a 10-day quarantine, following which he will depart for Pakistan.

"Misbah was the only Pakistan squad member who failed two pre-departure PCR tests. All other members will leave Jamaica as per schedule later today.

"The PCB is constantly in touch with Cricket West Indies who have confirmed that Misbah will be shifted to another hotel for the 10-day quarantine with a medical specialist assigned to look after his health and wellbeing."

Pakistan's next assignment is a home ODI series against New Zealand next month.