Public institutions and many families in Estonia on Sunday raised their national flag with black ribbons, mourning Lativia for a supermarket mishap which has caused over 50 deaths.

The Estonian government made the decision on Friday, calling on its people to show support to Latvia by flying mourning flags, reported the Estonian Public Broadcasting (ERR).

The death toll from the supermarket roof collapse in the Latvian capital Riga on Thursday has risen to 54. The chance of finding more survivors is fading.

The supermarket, built in 2011, belongs to the Lithuanian-owned Maxima chain, the second largest retailer in the country.

Latvia on Saturday began three days of mourning over the tragedy, which is the worst accident in the Baltic country in over 20 years.

Lithuania, another Baltic state, also flew flags mourning the mishap on Sunday.