Multiple date entries in covid data-frame

Found out that there are multiple date entries in covid data-frame for a particular date:

ts =pd.to_datetime(‘2020-10-10’)
covid_cases_df.loc[covid_cases_df.date == ts,:]

Output:
date cases
0 2020-10-10 78
522 2020-10-10 190
748 2020-10-10 5

How to add cases (78+ 190+ 5) on one date instance and add this to the data-frame?

@rl2000 use groupby() along with sum() funtion.

@maheshvarma-dommaraj. This worked. Thanks