People gather amid the debris of a Boeing 707 cargo plane that reportedly crashed into a residential complex near the Iranian capital Tehran with 10 people onboard on January 14, 2019. - The plane overshot the runway during its landing, Iran's aviation organisation spokesman Reza Jafarzadeh told state broadcaster IRIB. (Photo by HASAN SHIRVANI / various sources / AFP)

People, firefighters and security forces gather amid the debris of a Boeing 707 cargo plane that reportedly crashed into a residential complex near the Iranian capital Tehran with 10 people onboard on January 14, 2019. - The plane overshot the runway during its landing, Iran's aviation organisation spokesman Reza Jafarzadeh told state broadcaster IRIB. (Photo by HASAN SHIRVANI / various sources / AFP)

A picture taken on January 14, 2019 shows a Boeing 707 cargo plane that reportedly crashed into a residential complex near the Iranian capital Tehran with 10 people onboard. - The plane overshot the runway during its landing, Iran's aviation organisation spokesman Reza Jafarzadeh told state broadcaster IRIB. (Photo by HASAN SHIRVANI / various sources / AFP)

A picture taken on January 14, 2019 shows a Boeing 707 cargo plane that reportedly crashed into a residential complex near the Iranian capital Tehran with 10 people onboard. - The plane overshot the runway during its landing, Iran's aviation organisation spokesman Reza Jafarzadeh told state broadcaster IRIB. (Photo by HASAN SHIRVANI / various sources / AFP)

A picture taken on January 14, 2019 shows a Boeing 707 cargo plane that reportedly crashed into a residential complex near the Iranian capital Tehran with 10 people onboard. - The plane overshot the runway during its landing, Iran's aviation organisation spokesman Reza Jafarzadeh told state broadcaster IRIB. (Photo by HASAN SHIRVANI / various sources / AFP)

Firefighters and security forces gather amidst the debris of a Boeing 707 cargo plane that reportedly crashed into a residential complex near the Iranian capital Tehran with 10 people onboard on January 14, 2019. - The plane overshot the runway during its landing, Iran's aviation organisation spokesman Reza Jafarzadeh told state broadcaster IRIB. (Photo by HASAN SHIRVANI / various sources / AFP)

Firefighters and security forces gather amidst the debris of a Boeing 707 cargo plane that reportedly crashed into a residential complex near the Iranian capital Tehran with 10 people onboard on January 14, 2019. - The plane overshot the runway during its landing, Iran's aviation organisation spokesman Reza Jafarzadeh told state broadcaster IRIB. (Photo by HASAN SHIRVANI / various sources / AFP)

Firefighters and security forces gather amidst the debris of a Boeing 707 cargo plane that reportedly crashed into a residential complex near the Iranian capital Tehran with 10 people onboard on January 14, 2019. - The plane overshot the runway during its landing, Iran's aviation organisation spokesman Reza Jafarzadeh told state broadcaster IRIB. (Photo by HASAN SHIRVANI / various sources / AFP)

Firefighters and security forces gather amidst the debris of a Boeing 707 cargo plane that reportedly crashed into a residential complex near the Iranian capital Tehran with 10 people onboard on January 14, 2019. - The plane overshot the runway during its landing, Iran's aviation organisation spokesman Reza Jafarzadeh told state broadcaster IRIB. (Photo by HASAN SHIRVANI / various sources / AFP)

Relatives of victims mourn as they gather near the debris of a Boeing 707 cargo plane that reportedly crashed into a residential complex near the Iranian capital Tehran on January 14, 2019. - A military cargo plane overshot a runway, crashed and caught fire during a botched landing near the Iranian capital Tehran, killing 15 people, the army said today. (Photo by Abbas Shariati / TASNIM NEWS AGENCY / AFP)

Relatives of victims mourn as they gather near the debris of a Boeing 707 cargo plane that reportedly crashed into a residential complex near the Iranian capital Tehran on January 14, 2019. - A military cargo plane overshot a runway, crashed and caught fire during a botched landing near the Iranian capital Tehran, killing 15 people, the army said today. (Photo by Abbas Shariati / TASNIM NEWS AGENCY / AFP)

Relatives of victims mourn as they gather near the debris of a Boeing 707 cargo plane that reportedly crashed into a residential complex near the Iranian capital Tehran on January 14, 2019. - A military cargo plane overshot a runway, crashed and caught fire during a botched landing near the Iranian capital Tehran, killing 15 people, the army said today. (Photo by Abbas Shariati / TASNIM NEWS AGENCY / AFP)