Sunni Arabs formed the Army of Pride and Dignity as the sectarian clashes escalated.

It is essential that India and Pakistan insure that minor military clashes do not escalate into volatile confrontations.

Whether the tensions and clashes in the Persian Gulf will escalate now appears to depend on how Iran responds.

The clashes soon escalated into large-scale anti-Hindu and anti-Muslim riots in the city.

The clashes greatly escalated in May and June, leaving dozens dead and hundreds wounded.

The clashes escalated to a full-scale war by 1992.

As clashes escalated, London suspended the Northern Ireland parliament.

In the night, clashes escalated in Tripoli, with protesters trying to seize control of Green Square.

Violent clashes are taking place in Sana'a, and may escalate without notice.

The protests and clashes escalated.