Two more men have been arrested in the Sycamore Gap investigation.
A range of enquiries are currently ongoing as part of the wide-scale investigation which was started after the felling of the iconic tree.
Yesterday (October 31) Northumbria Police arrested two men in their 30s in connection with the incident.
Both have since been released on bail as enquiries continue.
A Northumbria Police spokesperson said: "We've made a further two arrests in connection with our investigation into the vandalism of an iconic Northumberland tree.
"A full investigation was launched after the Sycamore Gap Tree was felled overnight between September 27 and 28 in what we believe was a deliberate act of vandalism.
"A range of enquires have been going ever since, with the support of partners, as we work to ascertain the full circumstances surrounding the damage and identify anyone involved.
"Yesterday, we arrested two men, both in their 30s, in connection with the incident.
"They have both since been released on police bail as enquires continue.
"The loss of Sycamore Gap has been felt deeply across the community as well as further afield.
"As a Force, we have seen many touching tributes from those who have detailed what this iconic landmark meant for them personally and for our region.
"We’ve been working tirelessly to identify anyone responsible and bring them into police custody and we are committed to getting justice.
"We hope this recent wave of arrests demonstrates just how much work has been undertaken by our dedicated specialist teams in what has, so far, been a very difficult and complex investigation.
"As always, we would continue to encourage any members of the public with information which may assist to get in touch – if you’ve seen or heard anything suspicious, we’d like to know.
Get the latest news, sports, and entertainment delivered straight to your device, for just £3 for 3 months, click here
Most read:
Venomous adder spotted at County Durham village location
LIVE: Large fire service response to Stockton incident
Darlington man attacked friend with a knife during assault
"We'd also like to remind the public that this remains a live investigation so, for that reason, please avoid any speculation both in the community and on social media.
"Any information – no matter how small or insignificant you think it may be – could prove absolutely crucial to our enquiries.
"Anyone with information is asked to contact police via the ‘Tell Us Something’ page of the Northumbria Police website or by calling 101 quoting log NP-20230928-0295."
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here