Some 45 police officers were injured in a wave of weekend demonstrations in Berlin including protests against coronavirus restrictions, police said as protesters gathered again in smaller numbers on Sunday.     

The unruly protests, in which many demonstrators failed to wear masks or respect social distancing rules, have sparked a chorus of condemnation including calls for tougher penalties against those who violate restrictions aimed at curbing transmission of the deadly virus.  

A total of 133 people were arrested during Saturday's protests, which included a huge "day of freedom" demo against coronavirus restrictions, police said in a statement on Sunday.

The arrests were for offences including resisting police officers, breach of the peace and the use of unconstitutional symbols. Three officers required hospital treatment, police said.