A brave four-old boy who is battling a rare form of cancer switched-on the Christmas lights in Dereham, after arriving in a police van.

Dereham Times: Denver Clinton ready to switch on the Dereham Christmas lights with his sister Savannah. Picture: DENISE BRADLEYDenver Clinton ready to switch on the Dereham Christmas lights with his sister Savannah. Picture: DENISE BRADLEY (Image: Copyright: Archant 2018)

Denver Clinton, from Mattishall, who loves police cars, started the big countdown at 5pm on Sunday, December 2.

Kerry Doyle, from the Dereham Carnival Committee, which organised the event, said: 'It went really well and Denver loved it. There was not a dry eye in the place. Everyone enjoyed it. We estimate that we had between 4,500 and 5,000 people at the event. We've had overwhelming support from the community.'

The switch-on event was part of a day of family fun, with craft stalls, live music, food and drink.

Denver was diagnosed with stage four high-risk neuroblastoma and has been fighting the disease ever since by undergoing high doses of chemotherapy, bone marrow aspirations and blood transfusions. Unfortunately, the family recently received the devastating news that Denver was no longer responding to treatment.

Dereham Times: Denver Clinton, right, ready to switch on the Dereham Christmas lights, with Lee Rudd. Picture: DENISE BRADLEYDenver Clinton, right, ready to switch on the Dereham Christmas lights, with Lee Rudd. Picture: DENISE BRADLEY (Image: Copyright: Archant 2018)

Dereham Times: Five-year-old Harriet Noble and her brother Isaac, three, at the Dereham Christmas lights switch on event. Picture: DENISE BRADLEYFive-year-old Harriet Noble and her brother Isaac, three, at the Dereham Christmas lights switch on event. Picture: DENISE BRADLEY (Image: Archant)

Dereham Times: Denver Clinton wowed by the Dereham Christmas lights after he pulled the switch. With him are his family, sister Savannah, mum Wanda, front right, and family friend Jo Marshall. Picture: DENISE BRADLEYDenver Clinton wowed by the Dereham Christmas lights after he pulled the switch. With him are his family, sister Savannah, mum Wanda, front right, and family friend Jo Marshall. Picture: DENISE BRADLEY (Image: Archant)

Dereham Times: Imogen Smith, three, in awe at the Dereham Christmas lights and tree, with her dad Gary. Picture: DENISE BRADLEYImogen Smith, three, in awe at the Dereham Christmas lights and tree, with her dad Gary. Picture: DENISE BRADLEY (Image: Archant)

Dereham Times: Denver Clinton, left, pulls the lever to switch on the Dereham Christmas lights with help from Lee Rudd. Picture: DENISE BRADLEYDenver Clinton, left, pulls the lever to switch on the Dereham Christmas lights with help from Lee Rudd. Picture: DENISE BRADLEY (Image: Copyright: Archant 2018)

Dereham Times: Ready for the Dereham Christmas lights switch on. Picture: DENISE BRADLEYReady for the Dereham Christmas lights switch on. Picture: DENISE BRADLEY (Image: Copyright: Archant 2018)

Dereham Times: Denver Clinton, left, ready to switch on the Dereham Christmas lights with help from Lee Rudd. Picture: DENISE BRADLEYDenver Clinton, left, ready to switch on the Dereham Christmas lights with help from Lee Rudd. Picture: DENISE BRADLEY (Image: Copyright: Archant 2018)

Dereham Times: Denver Clinton ready to switch on the Dereham Christmas lights. Picture: DENISE BRADLEYDenver Clinton ready to switch on the Dereham Christmas lights. Picture: DENISE BRADLEY (Image: Archant)

Dereham Times: Ready for the Dereham Christmas lights switch on. Picture: DENISE BRADLEYReady for the Dereham Christmas lights switch on. Picture: DENISE BRADLEY (Image: Copyright: Archant 2018)

Dereham Times: The crowd joins in with the Baby Shark song at the Dereham Christmas lights switch on event. Picture: DENISE BRADLEYThe crowd joins in with the Baby Shark song at the Dereham Christmas lights switch on event. Picture: DENISE BRADLEY (Image: Archant)

Dereham Times: The crowd joins in with the Baby Shark song at the Dereham Christmas lights switch on event. Picture: DENISE BRADLEYThe crowd joins in with the Baby Shark song at the Dereham Christmas lights switch on event. Picture: DENISE BRADLEY (Image: Copyright: Archant 2018)

Dereham Times: Savannah Clinton sings a song she wrote for her brother Denver at the Dereham Christmas lights switch on event. Picture: DENISE BRADLEYSavannah Clinton sings a song she wrote for her brother Denver at the Dereham Christmas lights switch on event. Picture: DENISE BRADLEY (Image: Archant)

Dereham Times: Members of the Dereham Town Band play at the Christmas lights switch on event. Picture: DENISE BRADLEYMembers of the Dereham Town Band play at the Christmas lights switch on event. Picture: DENISE BRADLEY (Image: Copyright: Archant 2018)

Dereham Times: Members of the Dereham Town Band play at the Christmas lights switch on event. Picture: DENISE BRADLEYMembers of the Dereham Town Band play at the Christmas lights switch on event. Picture: DENISE BRADLEY (Image: Archant)

Dereham Times: Crystal Constable, eight, and her sister Skye Butters, 10, at the Dereham Christmas lights switch on event. Picture: DENISE BRADLEYCrystal Constable, eight, and her sister Skye Butters, 10, at the Dereham Christmas lights switch on event. Picture: DENISE BRADLEY (Image: Archant)

Dereham Times: The Rev Nigel Bayley, minister at Dereham Baptist Church, reads a Bible passage at the Dereham Christmas lights switch on event. Picture: DENISE BRADLEYThe Rev Nigel Bayley, minister at Dereham Baptist Church, reads a Bible passage at the Dereham Christmas lights switch on event. Picture: DENISE BRADLEY (Image: Archant)

Dereham Times: Happy crowds sing carols at the Dereham Christmas lights switch on event. Picture: DENISE BRADLEYHappy crowds sing carols at the Dereham Christmas lights switch on event. Picture: DENISE BRADLEY (Image: Archant)

Dereham Times: Happy crowds sing carols at the Dereham Christmas lights switch on event. Picture: DENISE BRADLEYHappy crowds sing carols at the Dereham Christmas lights switch on event. Picture: DENISE BRADLEY (Image: Copyright: Archant 2018)

Dereham Times: Characters thrill the crowds at the Dereham Christmas lights switch on event. Picture: DENISE BRADLEYCharacters thrill the crowds at the Dereham Christmas lights switch on event. Picture: DENISE BRADLEY (Image: Copyright: Archant 2018)