New Delhi, Aug 26 - The Delhi High Court Wednesday expressed concern at concretisation of pavements in the capital city making tree roots weak and causing them to fall during storms, and issued a notice to the central and state governments on the issue.

The court was hearing a public interest petition filed by S.C. Jain, who pointed out that trees on pavements in the city were falling because their roots are becoming weak due to concretisation of the pavements.

Appearing on behalf of the petitioner, advocate Sugreev Dubey contended that 'trees were getting uprooted even after the slightest of storms which in turn leads to huge jams across the capital'.

He also cited the heavy rains the city witnessed July 27 and said: 'The roots of the trees are destroyed because they get little space to grow and anchor the trees.